Occasionally cells stop dividing and enter another phase, G 0 . If you damage your liver, new liver cells can be produced to replace up to 75% of the liver. However, if you sustain brain dam-age, your body does not produce new brain cells. Explain this observation using what you have learned about the cell cycle.

Answers

Answer 1

Cell division is essential for growth and development of organisms. Cell division is regulated by the cell cycle, which consists of four phases: G1, S, G2, and M.

During G1, the cell grows and performs its normal activities. The S-phase is when the cell makes DNA. The cell gets ready to divide during G2. The cell divides into two daughter cells during the M-phase.

Occasionally, cells enter a resting phase called G0. This phase is characterized by the cell not actively growing and dividing. Cells in this phase are usually post-mitotic, meaning they are not planning to divide anymore and have exited the cell cycle.

Liver cells can divide and enter the cell cycle and produce new cells if the liver is damaged, up to 75%. This is possible because liver cells are bi-potent, meaning they have the potential to divide and create new liver cells. On the other hand, brain cells are post-mitotic and cannot enter the cell cycle and divide. Therefore, if the brain is damaged, it cannot produce new brain cells since they are not able to divide.

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Related Questions

What elements of human nature are explained by the world on the turtle's back?

Answers

The elements of human nature that are explained by the world on the turtle's back are good vs evil and right vs wrong.

A creation story from the Iroquois people is known as The World on a Turtle's Back. The biblical view of creation is connected to this worldview. Both depict a woman who wants to eat the forbidden fruit. As soon as they consume this evil fruit, both good and bad are born.

Good vs evil, justice versus wrong, and good versus bad were the natural elements that were discussed. This is demonstrated by the conflict between the opposing pairs and how they counterbalance one another.

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An emergent property of an ecosystem could be the fall colors enjoyed by many who travel to the northeastern and midwestern US deciduous forests. True False

Answers

False. An emergent property of an ecosystem is a property that arises out of the interactions between the components of the system, and is not attributable to any one component.

Rather, the fall colors are a result of the deciduous trees shedding their leaves in preparation for the winter. This is a seasonal phenomenon which is not characteristic of the ecosystem itself, but rather the individual species which exist within it.

The autumnal changes observed in the leaves of the trees, and the resulting show of vibrant colors, is a result of the trees’ response to the changing environmental conditions. The trees are adapting to the decreasing levels of sunlight, temperatures, and moisture, which occur in the autumn months.

The emergent properties of an ecosystem are more subtle and complex than the seasonal changes in the trees’ leaves. Such properties are the result of the interactions between the various living and nonliving components of the system, and can be seen in the ways that species interact and change over time.

This could include the way that species evolve in response to changes in their environment, the way that certain species are able to dominate the environment, or the way that resources are used and exchanged between species.

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The following list describes a certain set of objects in our solar system.
no solid surfaces
thick atmospheres
many rings and many moons
Which is the most likely set of objects described by this list?

Answers

The correct answer would be inner planets, Terrestrial planets is another name for the inner planets.

What are inner planets?

There are a total of eight planets in our solar system. The outer planets and the inner planets are two other major groups into which planets can be divided. Earth, Mercury, and Mars are considered inner planets since they are situated within the asteroid belt (region of asteroids between Mars and Jupiter). Furthermore, because they are made of minerals and metals, inner planets differ from other planets in terms of their composition. These planets are also referred to as terrestrial planets because of their makeup.

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What are two similarities between natural and artificial selection?

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Natural selection is a process that occurs when environmental factors that limit survival and reproduction, such as harsh environments or mating competition, are present.

Selected breeding falls within the definition of "artificial selection." Breeding is the natural act of two species mating, but selective breeding is an artificial process where people intervene and pick certain organisms to marry. Selective breeding and natural selection can be contrasted in three ways.

Artificial selection is a human-driven process. Natural selection is governed by environmental demand for selection. The artificial selection process is managed by breeders. Natural selection has significantly boosted biological diversity on Earth. As opposed to natural selection, artificial selection makes it simpler for the breeder to pass on desired qualities.

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What are the 3 factors of natural selection?

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The core of Darwin's thesis is that if three criteria are met, natural selection will take place. Factors: The battle for existence, variety, and inheritance is represented by the circumstances highlighted in bold above.

Most attributes are inherited, more offspring are generated than can survive, and offspring with more attractive traits will survive and have more offspring than those with less favorable traits. These three principles result in natural selection, which is an unavoidable process.

More environment-adapted organisms are more likely to survive and pass on the genes that contributed to their success. Over time, species change and diverge as a result of this process. One method of accounting is natural selection.

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Steps in Urine Formation
What are the events at the different areas of a nephron and in the collecting duct?
A. filtrate forms
B. Active & passive mechanisms reduce filtrate volume
C. Water is absorbed, ions are not.
D. Ions are actively absorbed, water is not.
E. The first nephron component where aldosterone regulated
F. ADH regulated water absorbtion
G. Water & solutes transported back into the bloodstream.

Answers

The filtrate or developing urine is undergoing alteration by secretion and reabsorption before traveling from this point to the extremities of the collecting ducts.

What is typical urination?

Normal urine might be clear or light yellow in color. However, some factors can alter the color. Foods like beets, blackberries, and fava beans, for instance, might cause urine to turn pink or red. Additionally, some medications might produce vibrant urine colors like orange or greenish-blue.

What causes yellow urine?

Urobilin, a chemical waste product produced by the disintegration of old red blood cells, is what gives urine its most prevalent color, which is yellow.

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Can chronic diseases be treated?

Answers

Surgery, physiotherapy, psychotherapy, and radiation therapy are just some of the options available for treating chronic diseases.

In most cases, chronic diseases can be managed, but not cured, over the long term. In addition to dealing with acute health problems and complications that can shorten life expectancy, people with chronic illnesses frequently deal with daily symptom management that negatively impacts their quality of life.

Medication, however, is a common treatment option. Medication costs are a major part of health care spending in Australia and other developed countries, accounting for 13% of the total in 200607.4 In 2008, 4 billion prescriptions were filled, and many of these were for long-term conditions. Prevention and management of chronic diseases, especially when multiple medications are required, can be taxing.

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Is a snail considered an animal or an insect?

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Snail is considered as an animal as insects strictly belong to the pylum Arthropoda.

Snails are the animals of the phylum Mollusca. They belong to the class Gastropoda and are recognized by the presence of the spiral shaped shell on the upper side of the body. Snails can be present on land or even in water. It moves y the help of a single muscle like foot.

Arthropoda is the largest phylum of the Animal kingdom that possesses the invertebrate organisms. The characteristic features of the organisms of this phylum is presence of exoskeleton, segments in the body and paired appendages. The organisms of Arthropoda are referred to as insects.

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Which scientists labeled the DNA and proteins of viruses to demonstrate that DNA is the molecule of heredity

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In 1953, James Watson and Francis Crick proposed the double helix model of DNA, which revolutionized the field of genetics. The discovery of the structure of DNA was a monumental achievement, it  was important breakthrough in establishing DNA as the molecule of heredity.

In 1935, American microbiologist Wendell Stanley demonstrated that a virus is composed of proteins and nucleic acids, proving that viruses are complex, living organisms. Stanley also identified and labeled the proteins and nucleic acids of the virus he was studying, which allowed him to conclude that the nucleus of this virus was composed of DNA. This was the first time that a scientist had identified and labeled the DNA and proteins of a virus, and it demonstrated that DNA is the molecule of heredity.

In the 1940s, American virologist Alfred Hershey and Canadian biologist Martha Chase conducted a series of experiments to study the composition of viruses. They used a radioactive isotope of phosphorus to label the proteins of a virus, and a radioactive isotope of sulfur to label the DNA. By doing this, they were able to prove that the DNA of the virus was the molecule responsible for heredity. This was the first time that scientists had labeled the DNA and proteins of a virus to demonstrate that DNA is the molecule of heredity.

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Which of the following has no effect on the outcome of the host-parasite relationship?
A. The number of parasites on or in the host
B. The virulence of the parasite
C. The defenses of the host
D. All of these have an effect on the outcome of the host-parasite relationship.

Answers

Answer:

C. The defenses of the host

What offspring is produced if a heterozygous tall pea plant is crossed with a homozygous short pea plant?

Answers

That a Tt heterozygous, giant plant produces T and t gametes with equal probabilities whereas a Tt homozygous, narrow plant exclusively produces t gametes, their offspring 50% tall and 50% short are crossed.

What does the term "heterozygous" mean?

The term "heterozygous" describes the presence of several alleles for a given trait. You have a dominant gene for that gene if the versions differ from one another. Which qualities are expressed depends on how the two genes are related.

What is an example of heterozygotes?

You have a genetic mutation for that gene if the variants differ from one another. For instance, having one gene for red hair but one allele with brown hair could indicate that you are heterogeneous for hair color. Which qualities are expressed depends on how the two alleles are related.

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Match the following. 1 . slime mold An organism that only has one cell for its body 2 . organismal theory The basic unit of life according to the cell theory 3 . life cycle The internal spherical structure in a cell which serves as the central control 4 . cell theory Serves to give strength and rigidity to the plant cell 5 . nucleus The living substance of a cell, excluding the nucleus 6 . cytoplasm The outer layer of cells of the stems, roots, and leaves of plants 7 . cell The stages of a plant or animal's life 8 . acellular organism Fluid filled sacs within the cytoplasm of a cell which are bound by a membrane 9 . epidermis The semipermeable membrane surrounding the cell 10 . unicellular organism An organism not divided into cells 11 . matter That which occupies space and has mass 12 . cell wall They are thought to make r-RNA to construct the ribosomes 13 . plasma membrane A functional plant or animal 14 . organism The basic unit of life is the organism itself 15 . vacuole A type of protist which has a stage in its life cycle when it is not divided into cells 16 . nucleolus The basic unit of life is the cell

Answers

Answer:

There should be a image

what system works with the respiratory system to circulate blood and oxygen throughout the body

Answers

The circulatory system works with the respiratory system to circulate blood and oxygen throughout the body.

The cardiovascular system (also called the circulatory system) transports blood from the heart to the lungs, where it is oxygenated. After receiving oxygen, blood is pumped out of the heart and into the body's arteries. Veins return blood that is low on oxygen to the heart, where the pumping process can begin again. Your body's organs, muscles, and tissues can't function properly without a strong circulatory system. The job of the circulatory system is to transport blood all over the body. The body's organs, muscles, and tissues would not function to keep you alive if the blood didn't circulate through them.

Getting rid of waste is another function of the circulatory system. Examples of such trash are:

Oxygen used in respiration produces carbon dioxide.

Excretions and waste products from your body's systems.

Food and drink scraps are waste products.

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Best Question/Problem for Hot and cold compress

helpp mee plsss Thank youu

Answers

Im guessing any is fine, as long as its acceptable.

"What are the benefits and potential risks of using hot and cold compresses, and when is it appropriate to use each type?"

A tumor in a male patient is preventing the anterior pituitary from secreting LH. What effect will this have on his sperm production

Answers

Answer:

He will have a decreased amount of testosterone and in turn a reduction in sperm production.

The stomach is the only part of the alimentary canal with three muscular layers. Why does the stomach need three layers of muscle

Answers

The stomach is the only part of the alimentary canal with three muscular layers. The stomach need three layers of muscle for digestion through peristalsis.

The stomach is a part of the body that includes the entire abdominal cavity which consists of the digestive tract and accessory organs, the urinary system, and the spleen. There are three layers of muscles in the stomach, namely the outer longitudinal muscles, the middle circular muscles, and the inner oblique muscles which help in peristaltic events.

Peristalsis is a movement in the form of muscle contractions in the digestive tract that pushes and stirs food so that it is digested. Through peristalsis the stomach will break down food and absorb nutrients during the digestive process.

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You test the expression of the constructs from Part B and obtain the following results. Regulatory DNA Promoter Transcribed region Expression? 1. Affected child Affected child Affected child No 2. Older brother Older brother Older brother Yes 3. Older brother Older brother Affected child Yes 4. Affected child Older brother Older brother No 5. Older brother Affected child Older brother Yes Which of the three hypotheses do these results support? O The results support the hypothesis that the defect in the affected child is due to a defective promoter O The results support the hypothesis that the detect in the affected child is due to regulatory DNA that will not remodel O The results support the hypothesis that the defect in the affected child is due to a mutation in the transcribed region that causes mRNA instability

Answers

The expression of one or more genes can be regulated by regulatory regions, as is well known.

The findings confirm the theory that the deficiency in the afflicted kid is caused by the regulatory DNA, which will not remodel, according to the data in the table.

Inheriting qualities from one generation to the next is made possible by genes, which are a component of DNA.

Gene regulation, the earliest genetic regulatory system, was first clearly shown in the Lac gene (operon), a basic unit of DNA.

The lac gene is necessary for the "breakdown of lactose" and aids in its for the transportation.

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Note : The table sequence of above question is attached bellow,

3 Two true breeding parents are crossed similar to Mendel's P generation. A tall plant is crossed with a short plant. What is the expected outcome for the F1 generation

Answers

All tall will be the expected outcome for the F1 generation. To create the P generation, Mendel crossed two pure breeding parents. A tall plant and a short plant have been crossed. In the first generation following the cross, one version of a trait.

Such as tall, always concealed the other form, such as short. Mendel referred to the dominant trait as being visible, and the recessive trait as being concealed. The buried version of the trait resurfaced in a small percentage of the plants in the second generation when plants were permitted parents to self-fertilize (pollinate themselves). The ratio was specifically 3:13:13, colon, 1, meaning that there were always roughly 333 plants that displayed the dominant characteristic (for example, tall) for every 111 plants that displayed the recessive trait.

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What happens in a global convection cell?

A. Cool air moves upward in the center; warm air moves downward at

the edge.

O

B. Warm air and cool air move in circles, causing hurricanes and

tornadoes.

O

C. Cool air and warm air repeatedly collide, pushing air up and

causing storms.

O

D. Warm air moves upward in the center, cool air moves downward at

the edge

Answers

In a global convection cell the correct option is (C). Cool air and warm air repeatedly collide, pushing air up and causing storms.

In a convection cell, the alterations are profound. The air molecules start to move and vibrate as the air at the cell's base heats. As a result, they start to spread out and collide, which reduces the density of the air parcel.

Convection is a pattern that occurs on a large scale. On a smaller scale, it also takes place within certain storms. However, because to Earth's rotation, the air that travels north and south from the equator likewise revolves with the Earth. Northbound air makes a right turn. Southbound air turns to the left.

Less dense air rises and moves away from the equator in a global convection cell. And the dense air from the pole flows backwards toward the equator as it descends. The poles can be thought of as the longitudinal edges of the earth's sphere, with the equator acting as its centee. The Coriolis Effect, a result of the spinning of the Earth, also aids in this airflow.

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4. Kevin is tall (Tt), has brown hair (Bb), has a cleft chin (CC), and is right handed (Rr). Kevin is homozygous for his
height
handedness
hair color
cleft chin

Answers

Kevin is homozygous for his cleft chin as all other are heterozygous. So, the correct option is (D).

What is Homozygous genotype?

Homozygous is defined as having inherited the same allele for a genomic marker from each biological parent, so an individual who is homozygous for a genomic marker has two identical versions of that marker. Whereas an individual who is heterozygous for a marker has two different versions of that marker.

In a diploid species there are two alleles for each trait or gene in each pair of chromosomes at the same locus, or locus with one coming from the father and the other from the mother.

An allele is one of two or more alternative forms of a gene, and are found at the same locus on chromosomes, so homozygous refers to having the same allele for a particular locus. So, in this case cleft chin is homozygous as they have same allele as compare to others.

Thus, Kevin is homozygous for his cleft chin as all other are heterozygous. So, the correct option is (D).

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the sympathetic trunks are located immediately lateral to the ______.

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The sympathetic trunks are located immediately lateral to the vertebral bodies of the vertebral column.

Sympathetic trunks are two ganglionated nerve trunks that form the bundle of nerve fibers paired together and run from the base of the skull to the coccyx.

This sympathetic trunk lies just lateral to the vertebral bodies for the entire length of the vertebral column.

Sympathetic trunks are a fundamental part of the sympathetic nervous system while also being a part of the autonomic nervous system. They allow both superior and inferior nerve fibers to travel to the spinal cord to commence the regulatory actions in the body.

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How do we know whether or not a heteromorphic chromosome such as the Y chromosome plays a crucial role in the determination of sex

Answers

The Y chromosome contains the "male determining gene," the SRY gene. This gene causes testicles to form in the embryo and results in the development of male genitalia. The SRY gene is important in sex determination in mammals and some insects.

Chromosomes are part of the structure of the human body, which consists of DNA and other molecules, and is the place where genetic material is stored.

To determine sex, the so-called X and Y chromosomes. If the embryo's chromosomes are XX, then it is female. Conversely, if the XY chromosome then the fetus will be born as a boy

Sex chromosomes are usually heteromorphic, that is, they show differences (size, shape, or reaction to staining) between their homologous chromosomes. Individuals having heteromorphic sex chromosomes can produce two types of gametes. For example, human males can produce gametes that have 22+X or 22+Y chromosomes.

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What is the sin of sex before marriage called?

Answers

The sin of sexual activity before marriage is often referred to as "fornication."

This term is used in many religious traditions, including Christianity and Islam, to refer to sexual activity between two individuals who are not married to each other.

Some other traditions may use different terms to describe this behavior, such as "premarital sex" or "adultery." It's worth noting that the concept of what constitutes a sin or immoral behavior around sexuality and sexual behavior can vary greatly across different religious and cultural traditions and belief systems.

It is important to note that this concept is based on religious and moral beliefs, and some people may have different views on it.

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Screens out harmful radiation

Answers

Answer:

Explanation:

With the arrival of warm summer weather, states have started to relax their COVID-19 stay-at-home orders. Excited to spend time with family and friends, people are now planning vacations, with one destination remaining a popular choice for many: the beach. However, extra time spent soaking up the sun increases our exposure to harmful ultraviolet (UV) radiation and raises our risk for developing skin cancer.

July is UV Safety Month. We know that one of the best ways to practice UV safety is to wear sunscreen every day. To help you choose and correctly use the best product for your needs, review the nine facts about sunscreen listed below.

Fact #1: Broad Spectrum Sunscreens are Best

UV radiation from the sun includes two types of harmful rays:

Ultraviolet A (UVA) Rays: Most common; cause premature aging of the skin (e.g., wrinkles)

Ultraviolet B (UVB) Rays: Most dangerous; cause sunburns

Overexposure to both types of rays can cause skin cancer. Sunscreens labeled as “broad spectrum” help protect against the effects of both UVA and UVB rays.

Fact #2: Aim for a Sunscreen with at Least 30 SPF

A sunscreen’s sun protection factor (SPF) indicates how much protection the product offers against UV radiation. Sunscreens with an SPF of at least 30 block 97 percent of the sun’s rays.

Fact #3: No Sunscreen is Waterproof or Sweat Proof

Manufacturers can no longer advertise sunscreens as waterproof or sweat proof. Instead, products are now labeled:

Water Resistant: Effective for up to 40 minutes in water

Very Water Resistant: Effective for up to 80 minutes in water

The AAD recommends reapplying sunscreen every two hours, after getting out of the water, or after sweating.

Fact #4: Children Under Six (6) Months Typically Should Not Wear Sunscreen

Infant skin is more sensitive than adult skin. To protect infants younger than six months, the AAD recommends keeping them in the shade as much as possible; dressing them in protective clothing, such as long-sleeved shirts, pants, and a wide-brimmed hat; and making sure they stay hydrated. If you are still concerned about sun exposure, ask your pediatrician if he/she recommends sunscreen.

Fact #5: Sunscreen is Only One Tool in Your UV Safety Toolbox

There are many ways to reduce your exposure to UV radiation. Experts recommend combining sunscreen use with wearing protective clothing, staying in the shade when possible, and avoiding outdoor activities when the sun is most intense.

Fact #6: Use “Teaspoon and Shot Glass Rule” to Determine How Much Sunscreen to Apply

Many people do not apply enough screen. The “Teaspoon and Shot Glass Rule” recommends using one teaspoon of sunscreen to cover the face and neck, and enough sunscreen to fill a shot glass — approximately one ounce — to cover all other exposed areas on the body.

Fact #7: Sunscreen Expires

According to the AAD, the FDA requires all sunscreens to retain their original strength for at least three years. Many sunscreens include an expiration date printed on the label. Visible changes in color or consistency can also indicate that it is time to dispose of the product.

Fact #8: Spray-On Sunscreens Are Convenient, But Not Always Effective

The AAD explains that current FDA regulations on testing and standardization do not apply to spray-on sunscreens. Individuals who want to use spray-on sunscreen should make sure to use an adequate amount, rubbing it in to thoroughly cover all areas of exposed skin.

Fact #9: Sunscreen is Safe to Use

Some recent news stories have called into question the safety of the ingredients used in sunscreens, but sunscreen remains completely safe to use and is recommended by all health care professionals. Read more about this in our blog post titled “Is Sunscreen Safe?”

Learn More: How NFCR is Advancing Skin Cancer Treatment

Research conducted by the National Foundation for Cancer Research’s (NFCR) scientists Danny R. Welch, PhD; Paul Fisher, MPh, PhD; Web Cavenee, PhD; and Helmut Sies, M.D., continues to play a critical role in our understanding of this complex disease, including potential advances in treatments for melanoma — the most dangerous type of skin cancer.

To learn more about skin cancer research supported by NFCR, please visit our Skin Cancer webpage.

What is the motto of energy conservation?

Answers

Energy Conservation slogans make no unwise moves. Conserve fossil fuels. Burn fossil fuels right now to avoid becoming one tomorrow. Conserve fuel to save money.

By using fewer energy services, energy conservation aims to cut down on unnecessary energy use. This can be accomplished by modifying one's behavior to use less service or by using energy more efficiently (using less energy for continuous service) (for example, by driving less). Through effective energy use, which has a number of benefits, including a decrease in greenhouse gas emissions and a lower carbon footprint, as well as cost, water, and energy savings, energy conservation can be accomplished.

In the planning and construction of buildings, energy conservation is crucial. Since the 1970s, its prominence has grown. Recently, the significance of energy conservation has been highlighted by worries about the implications of climate change and global warming. Green engineering techniques extend the life of machine parts that transform energy from one form to another.

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I Need Help From Science
Why do temperatures in the mesosphere decreases as altitude increases?

Answers

Answer:

due to decreasing absorption of solar radiation by the rarefied atmosphere and increasing cooling by CO2 radiative emission.

Explanation:

Within the mesosphere, temperature decreases with increasing height, due to decreasing absorption of solar radiation by the rarefied atmosphere and increasing cooling by CO2 radiative emission.

What is the correct statement about meiosis?

Answers

Meiosis typically results in genetic variation among the gametes produced

What is Meiosis?

Meiosis is a type of cell division that results in the formation of haploid gametes (sex cells) from the diploid cells of the parent organism. This type of cell division is used by organisms such as plants and animals to create eggs and sperm. During meiosis, one round of DNA replication is followed by two rounds of cell division. This process helps to reduce the chromosome number by half, leading to the production of four haploid gametes. Each gamete contains only one set of chromosomes, so when they combine with another gamete during fertilization, the resulting zygote has the full set of chromosomes from the parent organism. Meiosis is an essential part of sexual reproduction, as the combination of gametes ensures genetic diversity.

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Choose the correct statement about meiosis.
A) The result of meiosis is a zygote
B) Only somatic cells undergo meiosis
C) Meiosis restores the original haploid condition of a population
D) Meiosis typically results in genetic variation among the gametes produced
E) The products of meiosis are always four cells identical to the parent cell


4. The carbon-containing molecule found in the atmosphere that is often released by
tion is

Answers

Answer:

Oxygen is needed during the respiration process, which is how organisms turn food into chemical energy.

Carbon dioxide is a carbon-containing chemical that is present in the atmosphere and is frequently emitted during respiration. Blood oxygen is exchanged for carbon dioxide from bodily cells.

Explanation:

Answer:

burning of substance like fuel, wooden material etc

With industrialized food production, for every one unit of energy put on the table in the United States, how many units of nonrenewable fossil fuel energy are required to produce it

Answers

In the United States, industrialized food production requires approximately 10 units of nonrenewable fossil fuel energy to produce 1 unit of energy put on the table.

This is because industrialized food production involves the use of heavy machinery, transportation of food from the farm to the distribution center, and the use of fertilizers, pesticides, and other chemicals to produce crops. All of these activities require energy which is typically sourced from nonrenewable fossil fuel sources.

Additionally, food production also requires energy for processing and packaging, which further increases the amount of energy required to produce 1 unit of energy put on the table. In conclusion, industrialized food production requires approximately 10 units of nonrenewable fossil fuel energy for every 1 unit of energy put on the table in the United States.

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helix-turn-helix and zinc fingers are secondary structural motifs in dna and rna, respectively. true or false

Answers

In DNA and RNA, respectively, helix-turn-helix and zn fingers constitute secondary structural motifs. FALSE.

What is the main function of RNA?

Translation is the main mechanism by which RNA makes proteins. Genetic information is transmitted by RNA and decoded by ribosomes into a range of proteins needed for biological processes. rna, trna, and tRNA are the three main RNA varieties involved in the production of proteins.

What exactly is RNA, in simple terms?

Ribonucleic acid, sometimes known as RNA, is a nucleic acid that is present in all living cells and has characteristics similar to those of DNA. However, unlike DNA, RNA frequently has a single strand. The backbone of a Rna is composed of alternating hydrophilic groups and the sugar ribose, as opposed to the deoxyribose found in DNA.

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Other Questions
One reason that your ability to detect fine visual details is greatest when scenes are focused on the fovea of your retina is that: A)there are more feature detectors in the fovea than in the peripheral regions of the retina.B)cones in the fovea are nearer to the optic nerve than those in peripheral regions of the retina.C)many rods, which are clustered in the fovea, have individual bipolar cells to relay their information to the cortex.D)many cones, which are clustered in the fovea, have individual bipolar cells to relay their information to the cortex. A ST depression of at least _______, lasting at least ______ seconds, will confirm a positive stress test. Boundary fence question A Neighbours shed wall is on the boundary line and a fence is built, as close to the shed as possible the palings are on our side. Is the fence line after 15 years taken as the new boundary line In adverse possession law (I live in Victoria, Australia.)? A. To wash the first window, Roger extends theladder to 20 feet long. He places the base ofthe ladder 6 feet from the side of the house.Sketch a labeled picture of this to the right.B. How far up the house will the 20-foot ladderreach, to the nearest tenth of a foot? Show yourwork in the space to the right. Why was the economy roaring in the 1920s? Question 16 of 20 How did Sojourner Truth work to change the public's perception of slavery? A. She spoke throughout the country about her abolitionist views. B. She used her legal status to fight for enslaved people in the court system. C. She ran for public office to have a voice in creating and changing laws. D. She created a newspaper to publish the views of former slaves.Inbox Perimeter > 50 solve please need by tonight Whose shrine does the Durham Cathedral House What other purpose did or does the Cathedral serve? What is e called in log e? Why are unheard melodies considered to be sweeter than heard ones in Ode on a Grecian Urn? Find the nth term of the following sentence -5,-2,3,10,19 PromptSince we are on the topic of Global Economic Policy and the U.S. in World Affairs, let's revisit one of the Learning Focus &Essential Questions:"How does the World view the U.S. and why does that vary in different countries or regions?"Using the information from this section - answer the question above in paragraph form and use examples from this sectionand outside resources if needed. how did the election of Ulysses s. grant affected the voting rights of african americans? What is the situational irony in the story of Jim and Della Support your answer with the details from the story? Roman urbanism was based on the philosophy of imperial order, a means of making manifest through planning and architecture common urban spatial arrangements and building types. Which of the following is NOT considered an element of Roman urbanism imperial order Jim wrote the following derivation of a term with a rational exponent based on a term consisting of a radicand that is less than 0 A student places a sample of a pure metal in a crucible and heats it strongly in air. Data from the experiment are given in the table above. The final mass was determined after the sample was cooled to room temperature. Which of the following statements related to the experiment is correct? (See attached table)a.) The mass of the sample decreased, so physical changes occurred as the metal first melted and then boiled out of the crucible.b.) The mass of the sample increased, so a chemical change occurred when bonds formed between the metal and another substance.c.) There was nothing for the metal to react with, so only a physical change could have occurred.d.) The sample was only heated, so neither a physical nor a chemical change occurred. The ratio 81:108 in the simplest form which of the following would be true in a country with a command economy? A. private citizens can't own companies, B. wages would be set by individual business owners. C. output targets would be set by individual business owners. D. private citizens would decide what goods to produce Read the following article on Gertrude Elion. Then, read the summary that follows. You will notice that the summary is incorrectly written. In this lesson, you learned six rules for writing an effective summary. Using this information, make three specific suggestions that would improve this ineffective summary.Important note: Do NOT write a summary. You will write three suggestions for improving this summary. Your suggestions must be based on the six rules of effective summaries that you learned in the lesson.Complete article from Encyclopedia BritannicaU.S. pharmacologist (one who studies drug interactions) Gertrude B. Elion received the Nobel prize for medicine in 1988 along with George H. Hitchings and Sir James W. Black. The three were awarded the prize for their development of drugs used to treat several major diseases.Gertrude Belle Elion was born on Jan. 23, 1918, in New York City. She graduated from Hunter College in New York City with a degree in biochemistry in 1937. Unable to obtain a graduate research position because she was a woman, she took a series of jobs, including lab assistant, chemistry and physics teacher in New York City high schools, and research chemist. During this time she also took classes at New York University, where she earned a master's degree in 1941. Because she could not devote herself to full-time studies, Elion never received a doctorate.In 1944 Elion joined the Burroughs Wellcome Laboratories (now part of GlaxoSmithKline (a company that makes prescription medicines)). There she was first the assistant and then the colleague of Hitchings, with whom she worked for the next four decades. Elion and Hitchings developed an array (variety) of new drugs that were effective against leukemia, autoimmune disorders, urinary-tract infections, gout, malaria, and viral herpes. Their success was due primarily to their innovative (characterized by new or unique) research methods. Rather than using the trial-and-error approach used by previous pharmacologists, Elion and Hitchings examined the difference between the biochemistry of normal human cells and that of cancer cells, bacteria, viruses, and other pathogens (disease-causing agents). They used this information to create drugs that could target a particular pathogen without harming the human host's normal cells. Their methods enabled them to eliminate much of the guesswork and wasted effort typical in previous drug research.Although Elion officially retired in 1983, she helped oversee the development of azidothymidine (AZT), the first drug used in the treatment of AIDS. In 1991 she was awarded a National Medal of Science and was inducted into the National Women's Hall of Fame. She died on Feb. 21, 1999, in Chapel Hill, N.C.Student J. Doe's SummaryGertrude Elion was born in 1918 in New York City. She went to school for many years and eventually won the Nobel prize. She was unable to obtain a graduate research position because she was a woman. She took a series of jobs, including lab assistant, chemistry and physics teacher in New York City high schools, and research chemist. She was a scientist who helped discover many important drugs that saved lives. Elion also discovered new ways to test drugs. She died in 1999, 16 years after she retired from Burroughs Wellcome Laboratories. I think she was a terrific scientist. (10 points)