Humans belong to the group of mammals known as placental mammals, because the developing embryo grows within the mother before a live birth.
Placental mammals are any of a group of mammals in which the embryo and later the fetus, is nourished in the uterus by an organ called the placenta. The placenta is an organ that attaches the embryo to the uterine wall and is the site of exchange between the mother’s and the fetus’s blood in order to provide nourishment to the developing fetus.
Placental mammals are the most highly evolved group of mammals and include monkeys, apes, and humans. In contrast to other mammals, such as marsupials whose embryos are nourished in the uterus for a short time before being born, placental mammals develop within the mother until they are fully developed. This prolonged period of development in the mother gives the fetus time to fully develop its organs and to grow to a larger size before birth.
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I need help answering 2-6!! Please !!! If someone can help me that would be great!
An enzyme that digests starch into little carbohydrate molecules is called amylase. Two places generate this enzyme. In the beginning, salivary glands in our mouth produce salivary amylase, which kickstarts digestion by dissolving starch and transforming it into maltose and smaller carbohydrates.
what is an enzyme?
Proteins called enzymes aid in accelerating our bodies' chemical reactions, or metabolism. Some compounds are created, while others are broken down. Enzymes are a part of all living things. Enzymes are created by our bodies spontaneously.
A component known as an enzyme serves as a catalyst in living things, controlling the rate at which chemical processes take place without undergoing any personal change.
Different Digestive Enzyme Types
Amylase.
Lactase.
Lipase.
Proteases.
Sucrase.
Enzymes are categorised by the sort of reaction they are employed to catalyse into six functional classes, according to the International Union of Biochemists (I U B). Hydrolases, oxidoreductases, lyases, transferases, ligases, and isomerases are the six different categories of enzymes.
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Which is an example of a recent development used to address food shortages in urban areas?
Answer:
A is answer
Explanation:
A recent development to address food shortages in urban areas is to create community gardens. The city usually sets aside a space for people to grow their own food.
Answer:
Its b.
Explanation:
What gene controls fur color?
Scientists have identified a gene, DKK4, that helps regulate the early development of different coat patterns in domestic cats. The team believes that DKK4 is likely involved in color patterns in all cats, and possibly other mammals as well.
A cat with a dominant color (black, red, calico, etc.) needs a parent to indicate the dominant color. Her two parents with recessive colors (cream, blue, etc.) cannot produce offspring with dominant colors (black, red, etc.).
A co-dominant red gene (O/o) found on the X chromosome determines whether there is a red variation in coat color. This gene encodes pheomelanin. The dominant O allele encodes an orange tone, while the recessive O allele encodes non-orange pigmentation (black or brown).
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What is the best example of a Mendelian trait in humans?
The best example of a Mendelian trait in humans is phenylketonuria. This illness is an illustration of a Mendelian trait since it is passed down from parents to children when both parents have heterozygous (Aa) and homozygous (Aa) circumstances.
Mendelian qualities are determined by all of Mendel's postulated Laws of Inheritance and are traits that are transferred from parents to children through dominant and recessive alleles of a gene. The lack of an enzyme that turns the amino acid phenylalanine into tyrosine is the root cause of the autosomal recessive inherited disorder. As a result, the amino acid builds up and is converted into the toxic form of phenyl pyruvic acid, which builds up in the brain of the person and causes r-e-t-a-r-d-a-t-i-o-n.
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Imagine you are playing baseball and a line drive comes out of nowhere. You do not even realize till the last second that it is heading for your face! explain the reflex type of movement you would experience. Describe the nervous system's reaction from sensing the stimuli to response.
When a line drive unexpectedly comes barreling towards you on the baseball field, your reflexes take over.
Your nervous system quickly senses the stimuli of the incoming line drive and sends a signal to your muscles to move out of the way.
You may not even notice the ball coming until the last second, but your body instinctively knows to act quickly and respond.
You may duck, jump, or move to the side to avoid the ball, all in a fraction of a second. This is the result of your body's reflexive response to the stimuli it has received. Without thinking, your body is able to react and protect you from harm.
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The Young-Helmholtz theory proposes thatA. there are four different types of conesB. there are three different types of color-sensitive conesC. retinal cells are excited by one color and inhibited by its complimentary colorD. rod, not cone, vision accounts for our ability to detect fine visual detail
Option A, The Young-Helmholtz theory proposes that B. there are three different types of color-sensitive cones in the eye that are sensitive to different wavelengths of light, which allows us to perceive a wide range of colors.
These cones contain pigments that respond to different parts of the visible spectrum, such as red, green and blue. This theory sensitive states that the sensitive brain interprets the relative stimulation of these cones as different colors. There are four different types of cones is not accurate, because the Young-Helmholtz theory states that there are three different types of cones. Retinal cells are excited by one color and inhibited by its complimentary color is not accurate either. The retinal cells are sensitive to different wavelengths sensitive of light and the brain interprets the relative stimulation of these cells as different colors. rod, not cone, vision accounts for our ability to detect fine visual detail is not accurate according to the Young-Helmholtz theory, which focuses on the role of the cones in color vision, not the rods. Rods are responsible sensitive for our ability to see in low light conditions and detect fine details in dim light.
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1. An intermediate harvest intended to remove part of the trees to allow the remaining trees to get more sun is called what?
2. What forestry practice involves the use of fire as a management tool?
3. Why does clear cutting seem to upset so many people?
4. What are the main ways that forests are reproduced
1. An intermediate harvest intended to remove part of the trees to allow the remaining trees to get more sun is called clearcutting.
2. Prescribed burning
3. Clearcutting reduces biodiversity. Because clearcutting indiscriminately destroys entire areas, plant loss and destruction of animal habitat is unavoidable. Further environmental stress is put on many already endangered species that call the forest home.
4. Forests may be reproduced by either natural or artificial methods.
About ClearcuttingClearcutting is a term that refers to a felling that is used to clear a piece of land evenly without regard to the limit diameter of the trees to be cut down or without exception. The clear cutting system is used to clear a piece of land and after clear cutting, the forest area is planted with various types of trees that are the same age and uniform.
The goal of clear-cutting is to maximize land productivity and environmental quality in accordance with the carrying capacity of the local environment,and create long-lived forest of high quality to meet the needs of industrial raw materials.
Clear logging was chosen compared to the Selective logging system because it can prevent damage to young stands due to clear cutting of all trees, a method that is simple, cheap, and practical, can grow stands of uniform age, plants planted do not overlap with other tree characteristics, and can intercropping technique was carried out. Even so, clear-cutting has drawbacks, such as the occurrence of open ground resulting in minimal nutrients, soil erosion can occur, increased fire hazard, minimal aesthetic views, the goal of clear-cutting is to make the forest lifelong so that it is vulnerable to pests and diseases, and requires replanting of larger plants .
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Where is ground tissue found in a plant?
In the soft parts of leaves, stems, and roots
On the entire outer surface of the plant
At the tips of shoots and root caps
In clusters of vascular bundles in the stems
Answer:
The ground tissue system is found within each plant organ. Within leaves, the ground tissue system consists of palisade mesophyll, which are tightly compacted cells that are the site of photosynthesis. Within plant stems, the ground tissue consists of the cortex (outer stem layer) and pith (spongy stem center).
Explanation:
Answer:
in the soft parts of leaves, stems, and roots
Explanation:
How can a cup of water decrease in temperature? please answer my question in a scientific method, the questions will be below.
Step 1: Observation
Step 2: Research:
Step 3: Hypothesis:
Step 4: Experiment – explain the experiment that you would perform
Step 4a- The control variable
Step 4b- The dependent variable
Step 4c- The independent variable
Step 5- What do you predict the conclusion to be?
The first step for this experiment is observation where it is found that a cup of water decreases in temperature. The rest of the steps are described in the explanation part.
What is a Scientific method?A scientific method may be characterized as the process of objectively establishing facts through testing and experimentation. The basic process involves making an observation, forming a hypothesis, making a prediction, conducting an experiment, and finally analyzing the results.
The second step is research in which a cup of water is placed at different temperatures where it can easily change its state from liquid to solid. The hypothesis governs that the amount of water in a cup may lower or decreases when it is exposed to several temperatures.
The experiment is performed on the basis of certain evidence and assumptions in order to predict some conclusion. The control variable is the influence of temperature. The dependent variable is the amount of water and the independent variable is the exposure to temperature.
Therefore, it is concluded that a cup of water decreases in temperature.
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What are 3 examples of common mutations?
The most common example of mutations are: Color blindness, Cystic fibrosis, Down syndrome.
Mutations are the change in the normal genetic sequence of the DNA that results in varied gene expression. Mutations can be at a single nucleotide or they can be over large strand of DNA, called point mutations and frameshift mutations respectively.
Down syndrome is the disease caused due to the presence of an extra copy of chromosome number 21, also called trisomy of chromosome 21. The disease cause some physical and developmental problems in the child. The symptoms include flattened face, small head, poor muscle tone, etc.
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explain each step of meiosis
Answer
(mitosis steps first)
Prophase II: Starting cells are the haploid cells made in meiosis I. Chromosomes condense.
Metaphase II: Chromosomes line up at the metaphase plate.
Anaphase II: Sister chromatids separate to opposite ends of the cell.
Telophase II: Newly forming gametes are haploid, and each chromosome now has just one chromatid.
HURRY I NEED HELP PLEASE
At its typical boiling point of 100°C, water has a vaporizing heat of 2260Jg⁻¹. This indicates that for water to convert from 1 g of liquid at 100°C to 1 g of steam at 100°C, it must absorb 2260 J of temperature.
What is the name of environment?An ecosystem, often known as the environment, is a natural system made up of all living things—plants, animals, and microbes—as well as all inanimate objects (abiotic components) that make up the environment.
Why is the environment so crucial?The status of the environment has a direct impact on human health and wellbeing. Good natural settings provide our fundamental requirements by providing fresh water, clean air, and a hospitable climate for growing food.
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True or false all of the water that is on the earth will always be here because of the water cycle
Answer: The statement appears to be true.
Based on Figure 1, which of the following statements best predicts the effect that a change from a moderately acidic environment (pH near 6) to a basic environment will have on peroxidase activity ?
O Peroxidase activity will decrease.
O Peroxidase activity will increase.
O Peroxidase activity will stay the same.
O Peroxidase activity will increase at first and then decrease.
The effect that a change from a moderately acidic environment (pH near 6) to a basic environment will have on O Peroxidase activity will decrease.
What is Peroxidase activity?Demonstrated that the performance of hydrogen peroxidase was greatly affected by all three factors, temperature, concentration level, and pH.The peroxidases are enzymes whose primary function is to oxidize hydrogen donors at the expense of peroxides. They are highly specific for hydrogen peroxide, but they accept a wide range of hydrogen donors, including polyphenols.Thyroid peroxidase also called as thyroperoxidase (TPO) is mainly expressed in thyroid organs. It is a large transmembrane glycoprotein with covalently linked haem, present in cells on the apical membranePeroxidase activity was pH-dependent, with complete inactivation at pH 2.5 and when 8.5 The maximum enzyme activity observed at pH 6.5 decreased when the pH was reduced or increased; the drop was sharper in the alkaline than in the acid rangeTo learn more about Peroxidase activity refers to:
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3. Which type of molecule is more likely to quickly pass through a cellular membrane via simple diffusion, polar or non-polar
Non-polar molecules are less likely to be drawn to the polar phospholipid heads of the cell membrane, which makes them more likely to move across a cellular membrane swiftly via simple diffusion.
This indicates that they can more readily traverse the hydrophobic (non-polar) tail section of the cell membrane. Polar molecules, on the other hand, are drawn to the phospholipid heads and may have trouble crossing the cell membrane.
Simple diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration without the aid of a transport protein. The cell membrane is a selectively permeable membrane, which means that it only allows certain molecules to pass through.
Non-polar molecules, such as hydrocarbons, can easily diffuse through the hydrophobic (non-polar) tails of the phospholipid bilayer because they are not attracted to the polar heads of the phospholipids.
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the spindles contain cellulose microfibrils in addition to microtubules, whereas animal spindles do not contain microfibrils
In humans, sister chromatids are distinct from one another, although they are identical in animals: Animal spindles lack microfibrils, but the spindles in the spindles contain both microtubules and microfibrils.
A tiny, hollow tube-like structure that can be discovered in the cytoplasm of both plant and animal cells. The form of a cell is supported in part by microtubules. Animal cells have cytoplasmic microtubules that resemble the mitotic spindle fibres and are linked to centriole satellites. The existence of these proteins and their potential contribution to cell shape maintenance are examined. Spindle fibres protrude from the centrioles in animal cells. However, spindle fibres arise from the cell's centrosome area in plant cells, which do not have centrioles.
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The term that refers to the presence of a tuft of flagella emerging from a single site is ______.
A. amphitrichous
B. lophotrichous
C. peritrichous
D. atrichous
E. monotrichous
Vlophotrichous Cell Biology describes tufts of flagella that are located near the cell pole.
How do flagella work? What are they made of?Flagella are tiny organelles that resemble hairs and aid in cell movement. In Latin, "flagellum" means "whip." A cell is helped to move through the fluid by the flagella, that resemble whips. Only a few number of organisms have special flagella that serve as sensing organs for temperature and pH changes.
What is a flagella cell?The flagellum's main purpose is to promote chemotaxis and movement. Bacteria can have one or more flagellums, and they can also be peritrichous or bipolar (containing several flagella at a single site) (having multiple flagella throughout the entire bacterium).
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For every described currently living species of organism, there are about ________
fossil species.
O 2
O 1/6
O 100
O 6
O 1/100
For every described currently living species of organism, there are about 1/6 fossil species.
What is fossil species?Fossil species are species that have been preserved in the fossil record. Fossil species are usually the remains of ancient organisms that lived millions of years ago, and are found in sedimentary rocks. They provide a window into the evolutionary history of the Earth, and are important for understanding the relationships between extinct and living species. Fossil species are also used to reconstruct ancient environments and ecosystems. Fossil species can be identified by their morphology, or physical characteristics such as size and shape.
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Describe how plants and animals each contribute to the survival?
Animals breathe in oxygen and emit carbon dioxide. Plants remove oxygen from the atmosphere while absorbing carbon dioxide. Animals can find food and refuge in plants.
A biotic community, or biota, made up of various plants, animals, and microbes coexists and is interconnected throughout the forest. There is direct or indirect interdependence between plants and animals. For instance, rodents eat plants and grains, and after being devoured by snakes, rats serve as a diet for eagles. Since the beginning of time, animals and plants have coexisted in a symbiotic connection. Just as plants provided the habitat for animals to thrive on land, animals also assisted plants in surviving by giving fertiliser through faeces and animal decomposition. Animals help pollinate plants and contribute carbon dioxide, which plants use as a source of energy. All these significant effects take place as a result of the interdependence of the plants and animals in the food chain.
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Part D: Consider Constraints
What limitations will there be to building an eco-friendly home in this neighborhood? Consider social, financial, and climate constraints while determining these limitations.
Social constraints such as zoning regulations and community resistance, financial constraints such as the cost of materials and labor, and climate constraints such as the availability of renewable energy resources and the local weather patterns.
What are limitations of eco-friendly home?Eco-friendly homes may have limitations such as higher initial costs for construction or retrofitting, limited availability of certain materials and technologies, and a lack of standardization in building codes and regulations.
Additionally, some eco-friendly features, such as solar panels or green roofs, may not be suitable for all climates or may require regular maintenance. It's also worth noting that eco-friendly homes can be more energy-efficient but they may not be able to produce all the energy they need and they may still rely on grid energy.
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What type is monggo?
Monggo or mung bean are the seeds that belong to the legume family of plants.
Monggo is the another name for the mung bean plant. It is a green colored lentil known for its high nutrition content. The common regions where the cultivation of monggo takes place is East, Southeast and South Asia. The monggo is a legume plant.
Legume is the term that refers to the plants of the family Fabaceae. It is characterized by the presence of seeds inside a pod. These seeds are usually edible. The examples include beans, lentils, and peas. These plant form root nodules for nitrogen fixation.
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Got it wrong the first time, I’m not sure and I only have 1 attempt left
It’s not survive & reproduce, and die
As habitats change, some organisms survive and reproduce, move out of the habitat, die options are correct.
How do animals adapt to changing environmental conditions?There are only three ways for animals to respond to climate change: they can move, adapt, or die. In an effort to escape the warming temperatures, many animals are moving to higher altitudes and latitudes, but most species may not be able to outrun the changing climate in time.
Alteration of the local environmental conditions that a specific organism lives in. Natural occurrences that can change habitat include droughts, illnesses, fires, hurricanes, mudslides, volcanoes, earthquakes, slight variations in seasonal temperature or precipitation, etc.
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In the united states, the vast majority of adult men and women fall in the 12" range of height between feet and feet
Please help
In the United States, the vast majority of adult men and women fall in the range of 12 cm from 5 ft 9 inches for men to 5 ft 4 inches for women.
Women are around 12 centimeters shorter than men overall. The average age-adjusted height for American men aged 20 and up, according to the Centers for Disease Control and Prevention (CDC), was 69.1 inches (175.4 cm) during 2015 and 2016. Approximately 5 feet 9 inches tall, then. This sum is based on information released in December 2018. In the United States, women are typically 5 feet 4 inches tall (or 63.7 inches tall).
Anthropometry is the study of measurements of the human body, such as weight, height while standing, and skinfold thickness. Anthropo is a Greek word that means "human." Metron, which meaning "measure," is where the term "metry" originates from. These measurements are used by scientists to determine averages and trends in human growth as well as to evaluate nutrition.
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What are the 3 light reactions in plants?
fame money and girls
what system works with the respiratory system to circulate blood and oxygen throughout the body
To obtain oxygen into the blood, its blood supply (cardiovascular system) pumps blood from of the heart to the lungs. Oxygen-depleted blood is returned to the heart through veins to restart circulation.
The respiratory system is supported by the circulatory system, that carries blood from and into the lungs. The circulatory system consists of the heart and blood arteries. The circulatory system assists in moving nutrients and oxygen through the lungs to the body's tissues and organs. Additionally, it aids in the removal of trash and carbon dioxide. The portion of the airway that extends below the larynx is known as the trachea (windpipe) (LAIR-inks). To keep the trachea (TRAY-kee-uh) open, its walls are lined with hard cartilage rings. Cilia that border the trachea move fluids and other objects out of the airway to prevent them from entering the lungs.
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How do musical embellishments help enhance a piece of music?
Musical embellishments are decorative or ornamental elements that are added to a musical piece to enhance its emotional expression or to make it more interesting or appealing. There are many different types of musical embellishments, including trills, turns, mordents, and vibrato, and they can be used to add variety and interest to a piece of music.
Embellishments can help to bring out the melody or theme of a piece of music, adding emphasis and expression to certain notes or phrases. They can also help to add a sense of movement or flow to the music, creating a sense of momentum or momentum. Additionally, embellishments can help to create a sense of drama or tension, particularly when used in a strategic or expressive way. Overall, embellishments can help to enrich the emotional content of a piece of music and make it more engaging and enjoyable for the listener.
A need is to a physiological state as a drive is to a(n)
a. innate state.
b. psychological state.
c. physical state.
d. biological state.
B) Similar to how a drive is to a psychological state, a need is to a physiological state.
What is an illustration of a mental state?Perception, bodily awareness, thought, belief, desire, motivation, intention, deliberation, decision, pleasure, emotion, mood, imagination, and memory are all examples of mental states. While some of these types are clearly distinguished from one another, others may overlap.
What are the four different states of mind?There are four distinct states of mind when you combine the types of focus (internal and external) with the ways we focus (helpful and harmful): critical, engaged, and on autopilot.
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what's the Nucleolus function
The production and assembly of the cell's ribosomes take place in the nucleolus, a spherical component of the cell's nucleus. Ribosomal RNA genes are also translated into the nucleolus.
What is a nucleolus?A lengthy ribosomal RNA (rRNA) precursor molecule is translated from DNA in the nucleolus, where it is converted into three mature RNAs.
Assembled with particular proteins to form the big and small ribosomal subunits.
A section of the nucleus is known as the nucleolus. It is not encircled by a membrane, unlike the nucleus.
Therefore, ribosomal RNA genes are also translated into the nucleolus.
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PLEASE ANSWER QUICK Have you heard the terms structure and function used before? Using what you already know, identify two structures in your classroom and state their function
Yes, I have heard the terms structure and function used before. The two structures I identified in my classroom were:
Desk - The desk provides a stable, elevated surface for students to use for writing and studying.Chalkboard - The chalkboard provides a surface for teachers to write notes, instructions, and reminders.The Importance of Structures in the ClassroomIn the modern classroom, structures are essential for an effective learning environment. Structures provide the necessary framework for students to work and learn, while also providing teachers the necessary tools to facilitate learning. Without the right structures in place, learning quickly becomes difficult and inefficient.
Desks are some of the most crucial structures in a classroom. A student's desk provides them with a stable, elevated surface to write and study on. Having a desk allows students to spread out their materials and have easy access to them whenever they need them. It also gives them a designated workspace to stay focused and organized.
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Create offspring with a few different levels of Food supply. How does food supply affect the body type of offspring?
Food supply affects body type of offspring by providing resources for growth, lack of it can cause malnourishment and smaller size.
Food supply can have a significant impact on the body type of offspring. When food is abundant, offspring may have the resources to grow larger and develop more muscle mass. Conversely, when food is scarce, offspring may be smaller and have less muscle mass as they do not have access to as many resources for growth. Additionally, if the food supply is inadequate, the offspring may be malnourished and have health problems. It is also worth noting that genetic factors also play a role in determining body type, so food supply may not be the only factor influencing the body type of offspring.
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