For DNA synthesis to begin and spread, four fundamental elements are needed. They are: enzymes, primer, template, and substrates.
Which enzyme from the list below aids in the formation of a fresh RNA strand from the DNA segment?The short RNA primers are created on the lagging strand by an enzyme called DNA primase using ribonucleoside triphosphates as a building block.
How does one create DNA?When a cell divides, a process known as replication causes DNA biosynthesis to take place. It entails separating the DNA double helix and creating a complementary DNA strand later on while using the parent DNA chain as a template. Deoxyribonucleoside 5′-triphosphates (dNTPs), which are joined to produce the expanding DNA chain, are joined by the key enzyme DNA polymerase.
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why is there a crisis if "energy can neither be created or destroyed"?
Answer: Scientists say that energy can neither be created nor destroyed, so therefore it is impossible for there to be an energy crisis.
Explanation:
I'm pretty sure I'm right
Answer:
There is a problem because if energy is created as machines worked everything would speed up until it breaks, and if energy was destroyed as machines worked everything would eventually slow down and stop. So in both cases the world would end, a whimper in one a bang in the other.
Explanation:
Reference: How things Work Now(book)
Two Scientists are discussing which two organisms are more closely related to each other. Scientist 1 proposes that the cow and dolphin are more closely related. Scientists 2 says that the frog and turtle are because they are both reptiles.
According to the chart above, which scientist is most likely correct?
Question 1 options:
Scientist 1 because the cow and dolphin share a more recent common ancestor
Scientists 2 because the frog and turtle share common food sources
Scientist 2 because shared characteristics are most important in determining relationships
Scientist 1 because the cow and dolphin both have live births
Answer:
cow and dolphin. D.
Explanation:
Energy (check all that apply)
a. can be transferred
b. can be transformed
c. can be created or destroyed
d. cannot be created or destroyed
The Moon's orbit of Earth is due to the attractive forces explained by Newton's Universal Law of Gravitation. What
observable phenomena naturally result from the Moon's orbit?
tides
seasons
solar flares
volcanic eruptions
What are some of the challenges one encounters in marketing orchard products?
Explanation:
One of the challenges may occur is achieving cleanliness, neatness, and order because orchard may be dirty at some point give its assosciation with actual dirt and moist.
What can you conclude about starch, glucose and their movement across the Visking tubing? , What implications does this have for starch and glucose in the small intenstine?
Answer:
Starch molecules is too large therefore cannot pass through pores of visking tubing, glucose molecules is small enough to pass through pores of visking tubing. Visking tubing is like small intestine in this experiment, where starch is too large to be absorbed through small intestine into bloodstream, glucose is small enough to diffuse through small intestine and to be reabsorbed into bloodstream.
Why is it important for plants to be able to respond to seasonal changes?
what is the speed of a car that travels 485 meters in 15 seconds
Antibiotics can be used to kill the specific pathogenic bacterium, Mycobacterium tuberculosis, that causes tuberculosis. The appearance of antibiotic-resistant strains has made it more difficult to cure M. tuberculosis infections. These antibiotic-resistant bacteria survive and pass on the genes to their offspring, making the resistant phenotype more common in the population. DNA analysis indicates that the genes for antibiotic resistance are not normally present in bacterial chromosomal DNA. Which of the following statements best explains how the genes for antibiotic resistance can be transmitted between bacteria without the exchange of bacterial chromosomal DNA?
a. The antibiotic-resistant bacteria release a hormone that signals neighboring bacteria to become resistant.
b. The genes for antibiotic resistance are located on a plasmid that can be passed to neighboring bacteria.
c. The antibiotic-resistant bacteria are the result of bacteria that specifically modify their own chromosomal DNA to neutralize the antibiotics
d. The antibiotic alters the bacterial genome of each bacterium, which results in an antibiotic-resistant population.
Answer:
b. The genes for antibiotic resistance are located on a plasmid that can be passed to neighboring bacteria.
Explanation:
Transformation is a genetic process by which bacteria take up foreign genetic material from the surrounding environment. In consequence, this process does not involve direct cell-to-cell interaction. Transformation allows the occurrence of horizontal gene transfer (HGT) events among different bacteria capable of exchanging extrachromosomal DNA plasmids, thus increasing genetic diversity in bacteria. Many different types of bacteria can acquire foreign genes, including antibiotic resistance genes, by HGT events involving plasmids, transposable elements, bacteriophages, etc.
Describe the convalent bond including providing examples of compounds formed through each type of bond ?
Answer:
is a chemical bond between two non-metal atoms. Like Hydrogen, Oxygen, Carbon are just few.
There is a covalent bond between the oxygen and each hydrogen in a water molecule (H 2 O). Each of the covalent bonds contains two electrons, one from a hydrogen atom and one from the oxygen atom.
Explanation:
Water or Co2 is a covalent bond that be either polar which has a negative charge and positive charge like water that has one negative oxygen and two positive hydrogen. and non polar like Carbon bonding with carbon is both positive.
what is NOT an example of proof of the existence of the emdosymbiotic theory in modern day mitochondria?
a. Mitochondria has its own DNA
b. Mitochondria have their own nucleus
c. Mitochondria has it's own membrane
d. Mitochondria has its own ribosomes
Answer:
The correct answer is - option B. mitochondria have their own nucleus.
Explanation:
Endosymbiotic theory is a evolutionary theory which explains how eukaryotic cells evolved from prokaryotic organisms.
Evidences of endosymbiotic theory are:
1. Mitochondria and chloroplasts are double membrane bound cell organelles. The inner membrane probably evolved from the plasma membrane of engulfed bacterium and outer membrane from the plasma membrane or endoplasmic reticulum of the host cell.
2. Almost similar size of mitochondria and chloroplast and bacteria and their ribosomes.
3. Cristae of mitochondria resemble the folded membranes is groups of bacteria.
4. Mitochondrion and chloroplast both have circular DNA similar to those of bacterial DNA.
A. GGU UAU
B. CCT TAC
C. ACC ATA
D. UGG UAC
Deoxygenated blood fills this receiving room.
Which of these is a density-independent factor?
A. Forest fire
B. Food source
C. Shelter
D. Water supply
Out of the options given, the density-independent factor is: A. Forest fire. A density-independent factor is a factor that affects a population regardless of its size and density.
What is cell?A cell is the basic unit of life that makes up all living things, including animals, plants, fungi, and bacteria. It is the smallest structural and functional unit of an organism that is capable of performing all the functions of life, including metabolism, growth, reproduction, and responding to stimuli. A typical cell is composed of a cell membrane, cytoplasm, and a nucleus (in eukaryotic cells), or a nucleoid region (in prokaryotic cells). The cell membrane is a selectively permeable membrane that surrounds the cell and separates it from the environment, regulating the exchange of materials between the cell and its surroundings. The cytoplasm is a gel-like substance that fills the cell and contains all the organelles and structures necessary for the cell's functions. The nucleus contains the cell's genetic material, including DNA, which controls the cell's activities and is responsible for inheritance.
Here,
A forest fire can have a significant impact on a population, regardless of its size or density. Forest fires can destroy habitats, reduce food sources, and alter the physical environment, which can have a significant impact on the population. A forest fire does not depend on the size or density of a population, so it is considered a density-independent factor.
The other options, such as food source, shelter, and water supply, are density-dependent factors that can impact a population based on its size and density. As the population increases, the availability of these resources can become limited, which can affect the population's growth and survival.
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Which of the following is NOT an ecosystem
service that forests provide?
habitat for wildlife
reduce soil erosion
lumber
carbon sink
all of the choices are ecosystem services
Answer:
All of the choices are ecosystem services.
Explanation:
Trees' roots hold soil down so it doesn't move everywhere and they recycle carbon into oxygen. In addition, they provide us wood and beautiful wildlife!
Have a great day!
The ecosystem services are all the benefits provided by the ecosystem to human. Otion A) habitat for wildlife is not an ecosystem service.
What are the Ecosystem Services?
When talking about ecosystem services, we are referring to the goods and services offered by ecosystems to human populations
There are different types of ecosystemic services:
Provision or supply:These are the products obtained by nature to be used or consumed, directly or with previous processing.
Among them, we can mention food, clear fresh-water, fertile soils, geotic materials, raw materials (used for clothing, construction), renewable fuels, biochemical compounds, pharmacological/medicinal resources, and others.
Regulation:Refers to ecological processes that improve life.
Among others, we might mention climate regulation, CO₂ absorption, water purification, air purification, erosion control, natural disaster avoidance such as flooding, soil formation and fertility maintenance, nutrient cycling, waste recycling, pests/plagues control, etc.
Cultural:Refers to the benefits that are not material.
Ecosystems also provide a recreational place or area to spend time, learn. They are a spiritual/religious space, a source of inspiration. They are considered to be cultural patrimony and the source of scientific knowledge.
Among th options, the one that is not a ecosystemic service is option A) habitat for
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.
The forehead is _______ to the ears.
Multiple Choice
medial
lateral
inferior
lateral
distal
Answer:
Hey!
Your answer should be LATERAL!
Explanation:
Hope This Helped!
(lemme know if its wrong!)
Are landslides considered a form of weathering, erosion, or deposition? Explain your answer.
Answer:
erosion
Explanation:
Landslides are actually a very extreme, fast-acting method of erosion: They transfer sediment down a slope and deposit it at the end of their path. The sediment a landslide deposits is known as its talus. The five agents of erosion are wind, waves, running water, glaciers and gravity.
Plant pollen is often carried by wind or insects from one plant to another. This process deposits the pollen containing the male sex cell on the part of the plant that contains the female sex cell.
What does this show about these plants?
They are sexual.
They are unicellular.
They are prokaryotic.
They are nonvascular.
Answer:
They are sexual
Explanation:
This is sexual because you need a mother cell and a father cell for this to happen.
Answer:
they are sexual because it takes to plants to create another one
Explanation:
What is the probability?
Answer:
50
Explanation:
their child has a 50% chance of having boss type o and a 50% chance of having blood type a
Would the lack of pollinators increase or decrease the carrying capacity of
humans? *
Answer: Decrease
Explanation:
Pollinator loss could result in a high economic loss.
In which life stage do humans start to talk, read, and
write?
Answer:
In Stage 1 (initial reading, writing and decoding), typically between the ages of 6 and 7 years old, the child is learning the relation between letters and sounds and between print and spoken words.
Hope it helped!!!
Answer:
In Stage 1 (initial reading, writing and decoding), typically between the ages of 6 and 7 years old, the child is learning the relation between letters and sounds and between print and spoken words
Please... I need help!!!
Tongue Rolling is a one gene trait. So where is it’s chromosome and it’s location??
Answer: One type of map uses the cytogenetic location to describe a gene’s position. The cytogenetic location is based on a distinctive pattern of bands created when chromosomes are stained with certain chemicals. Another type of map uses the molecular location, a precise description of a gene's position on a chromosome. The molecular location is based on the sequence of DNA building blocks (base pairs) that make up the chromosome. Buttt I don’t know if this is the answer your looking for. But I hope this helps in a way.
Explanation:
Produces 4 haploid cells that each have 23 chromosomes. Does this happen for mitosis, meiosis, or both?
Answer:
Meiosis
Explanation:
Because it forms 4 daughter cells which are haploid (half the amount of chromosomes as parent cell )
what is the main difference between vertebrates and invertebrates
Answer:
vertebrates have backbone and invertebrates don't have backbone
vertebrates eg; goat,fish,cow
invertebrates eg: jelly fish ,snail, earthworm
Answer:
Invertebrates are those that do not possess a vertebral column or backbone while Vertebrates are those where vertebral column or backbone is present.
Invertebrates are those that do not possess a vertebral column or backbone while Vertebrates are those where vertebral column or backbone is present.The main difference between vertebrates and invertebrates is that invertebrates, like insects and flatworms, do not have a backbone or a spinal column. Examples of vertebrates include humans, birds, and snakes.
What makes finches in the Galápagos Islands a good example of speciation?
A. It is very easy to train a Galápagos finch to eat seeds instead of
insects.
B. Galapagos finches have different beak adaptations.
C. Galapagos finches teach each other new adaptations.
O
D. There is only one species of Galapagos finch.
SUBMIT
Hi
Answer:
The Answer is B. Galapagos finches have different beak adaptations.
Explanation:
Answer:
B
Explanation:
Help me plz on my biology
Answer:
no problem is the first time since I am now in number of people who are you doing today is a day off
the marine animals affected by the bloom do not eat algae. How could domoic acid have poisoned these organism?
Answer:
Domoic acid is a kainic acid-type neurotoxin that causes amnesic shellfish poisoning. It is produced by algae and accumulates in shellfish, sardines, and anchovies. When sea lions, otters, cetaceans, humans, and other predators eat contaminated animals, poisoning may result.
Explanation:
Blooms of algae affect ALL TROPHIC levels because domoic acid is a neurotoxin that accumulates in different species (e.g., shellfish, sardines, anchovies, etc) which are eaten by higher consumers (e.g., manatees and dolphins), thereby altering the equilibrium of the food chain.
A food chain refers to the transfer of matter and energy as food from different trophic levels in an ecosystem.
The food chain is sustained by organisms called producers (.e.g., algae in a marine ecosystem), which are found at the most basal level of the chain.
The primary consumers (e.g., marine invertebrates) are organisms localized at the second trophic level. These organisms (primary consumers) eat producers.
The secondary consumers are organisms found at the third trophic level, which eat primary consumers, and so successively to all major trophic groups.
Blooms of algae alter the whole food chain because domoic acid is a poison that accumulates in the body of the organisms at all trophic levels.
In consequence, marine consumers at higher trophic levels (e.g., manatees and dolphins) are also affected by blooms of algae.
In conclusion, blooms of algae affect ALL TROPHIC levels because domoic acid is a neurotoxin that accumulates in different species (e.g., shellfish, sardines, anchovies, etc) which are eaten by higher consumers (e.g., manatees and dolphins), thereby altering the equilibrium of the food chain.
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How can the type of bedrock under soil affect the characteristics of the soil? *
by absorbing water
by making the soil more fertile
by weathering and becoming new parent material
by providing surface area for nutrient accumulation
Answer:
by weathering and becoming new parent material
Explanation:
Soil formation occurs as a result of the the decay or the remains of plants and animals which are used up.
Weathering can be defined as the physical and chemical breakdown of rock into smaller pieces called sediment. Weathering can be classified into two categories namely;
I. Physical weathering : it is the process of breaking rocks into pieces without affecting its chemical composition e.g temperature, abrasion and frost action.
II. Chemical weathering : it is the process of breaking rocks into pieces by chemical action which leads to changes in its chemical composition e.g carbonation, hydration, plant acid and oxidation.
Hence, the type of bedrock under a soil affect the characteristics of the soil by weathering and becoming new parent material i.e the contribution of small rock particle to the soil.
Which type of friction acts on an object that is not moving?
Answer:
its static friction i got it right on edge
Explanation:
Which mutation(s) cause the product to be a non-functional protein?
a.Nonsense and Missense c.ilent and Nonsense b. Frameshift and Missense
d. Nonsense and Frameshift
Answer:
The correct answer is - option D. nonsense and frameshift.
Explanation:
If there is a change in the sequence of DNA resulting in premature stop codon mRNA during transcription is known as a nonsense mutation and result in a non-functional protein.
a frame-shift mutation takes place when at least two nucleotides are altered and there are less chances to be changed by two others coding for the same nucleotide. It leads to a non-functional protein.