Describe TWO structural suitability of the villi for absorption

Answers

Answer 1

Answer:

Explanation:

Villi are filled with blood capillaries, and the blood constantly moving in them means that a steep concentration gradient is maintained. This increases the amount of dissolved, digested food that can be absorbed into the bloodstream from the small intestine.

Every square inch of the intestinal mucosa is comprised of around 20,000 villi, and the surface cells of the mucosa also have projections of their cell membranes called microvilli, all of which contribute to the increased surface area. This enables a great area to be available for the absorption of nutrients.


Related Questions

No matter which biome we examine ____ are the group of organisms that forms the nonmobile base for the biome's food web

A) animals
B) bacteria
C) plants
D) soil​

Answers

The answer is B) bacteria

Why is genetic variation important for the long term survival of a population?

Answers

Explanation:

According to Darwinism , the survival of the fittest , variation is important because it allows species to adapt to its environment , the stronger in traits is selected and the weakest is unable to adapt and die.

so , variation is the only way for a species to acquire new traits that can enable them to survive and adapt to their surroundings, Normally , Variation is very slow and it requires many generations for new traits to emerge , but it happens.

b. How many producers and consumers are in this food web? (1 point)​

Answers

Answer:

2 producers, 5 consumers.

Explanation:

Producers make their own energy, while consumers consume energy from others in the food chain.

Suppose the climate in a specific location becomes warmer. What are two things that might happen to a mammal species with a thick fur coat that lives in this location?

Answers

The two things that might happen to a mammal species with a thick fur coat that lives in this location are migration and change in their surroundings.

How do the birds and animals respond to the call of winter?

By moving from cold areas to warmer ones, animals are able to find food origins that are otherwise elusive during the winter months.

Birds migrate, but some mammals do, too - bats, elk, caribou and even some whales follow the weather to find warm winter quarters.

Thus, The two things that might happen to a mammal species with a thick fur coat that lives in this location are migration and change in their surroundings.

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What is the purpose of the proper handling of experimental subjects?

Answers

THE PURPOSE IS YO MUM SO GET UR SQUIGGLY HAIRLINE OUTTA HERE CUZ UR HAIRLINE LOOKS LIKE YUKINORI SHINOHARA AND HERES A PIC OF HIM!

The stratified squamous epithelial lining of the oropharynx and the laryngopharynx provides protection against the ______ activities associated with swallowing ingested materials.

Answers

The stratified squamous epithelial lining of the oropharynx and the laryngopharynx provides protection against the abrasive activities that is associated with swallowing.

What is stratified squamous epithelial?

The stratified squamous epithelium is a type of epithelial cells whose topmost layer is made of squamous that is flattened cells. Some stratified squamous epithelia are heavily keratinized and some are not.

They help in lining the body internal organs like pharynx and so on.

Therefore, The stratified squamous epithelial lining of the oropharynx and the laryngopharynx provides protection against the abrasive activities that is associated with swallowing.

Learn more about epithelial tissue here.

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If ectoderm is removed and replaced with belly ectoderm, will the belly ectoderm become a neural tube?

Answers

if the notochord is removed, ectoderm in this location does not become a neural tube.

How do jellyfish reproduce?

Answers

Answer:

Explanation:

Throughout their lifecycle, jellyfish take on two different body forms: medusa and polyps. Polyps can reproduce  abiogenetic by budding, while medusae breed eggs and semen to reproduce venereal.

Which of the following living reptiles care for their young and have a four-chambered heart, as birds do?
a. Turtles
b. Crocodiles
c. Lizards
d. Snakes
e. Tuataras

Answers

Crocodiles care for their young and have a four-chambered heart.

What principle enables this movement process of gases in and out of the respiratory system?

Answers

Diffusion down a gradient.

In the model of energy flow from autotrophs to heterotrophs, the interaction of matter and energy at different levels of the food
web is shown. Which statement accurately describes the energy transfer, the process involved, and the products formed based on
the model?

Answers

Answer:

B. Photosynthesis, indicated by the red arrows, uses energy stored in organic molecules to form ATP, which releases carbon dioxide and water.

Explanation

Photosynthesis use sunlight to synthesize foods from carbon dioxide and water.

Despite his fear of germs, howard hughes neglected his own hygiene despite having those around him follow strict cleanliness practices. hughes had these odd behaviors because __________. a. he believed he was unable to escape any infection b. he developed obsessive-compulsive disorder at an old age c. he thought he would be contaminated from the outside d. his paralysis at a young age prevented him from being self-sufficient please select the best answer from the choices provided a b c d

Answers

Hughes had these odd behaviors because he thought that he would be contaminated from the outside. His behavior indicates outer contamination does not matter.

What do you mean by Behavior?

Behavior may be defined as an act of responding to a specific stimulus. It is a way of representing oneself in front of certain conditions.

Hughes neglected his own hygiene because he thought that inner contaminations are more important as compared to outer contaminations. So, he did not follow strict cleanliness practices.

Therefore, Hughes had these odd behaviors because he thought that he would be contaminated from the outside.

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Answer: C. he thought he would be contaminated from the outside

Explanation:

Despite his fear of germs, Howard Hughes neglected his own hygiene despite having those around him follow strict cleanliness practices. Hughes had these odd behaviors because he thought he would be contaminated from the outside his paralysis at a young age prevented him from being self-sufficient

if a wave has a frequency of 4/s and a wave speed of 20 m/s, what is its wavelength?​

Answers

Answer:

its wavelength should be 5 metres

Explanation:

if you have any questions please feel free to ask :)

PLEASE SOLVE!!! WILL MARK BRAINLIEST!!!!!!!!!!!!

Answers

Answer:

ummm...... the parents have horns but one of there kids won't have horns.

umm...i don't know about the rest i'm so sorry.

can anyone help me with this? thank you if you do!

Answers

Answer:

I think the answer is B they all reflect light rays to form an image

Answer:

B

Explanation:

All mirrors reflect light rays, resulting in a "mirror" image. Concave mirrors reflect the rays so they converge, while convex mirrors reflect light so they diverge. This results in the different images that are seen in these types of mirrors.

1. what influence Charles Lindbergh to undertake which no one else has ever done?

Answers

Answer:

He took more fuel and left his navigator behind.

Which of the following is NOT one of the
four main types of tissues?
A. lung tissue
B. epithelial tissue
C. connective tissue

Answers

Answer:

B

Explanation:

It's complexity are unrelated

Answer:

Lung Tissue

Explanation:

brainliest pls ; )

What is your opinion about fracking? State your opinion and give reasons to support it. Answers must be at least three sentences. NO LINKS

Answers

Fracking process is dangerous and hazardous for all our environment and its organisms.

What is your opinion about fracking?

Hydraulic fracturing is a type of oil and gas drilling that occurs across the country. Due to no safety regulations, it can polluted groundwater, pollute surface water, and harm wildlife.

So we can conclude that fracking process is dangerous and hazardous for all our environment and its organisms.

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Rabbits were introduced to Australia in the 1800s and spread quickly across
the continent, moving into the nests of native burrowing animals and eating
their food. What allowed the nonnative rabbits to spread so quickly in
Australia?
A. The rabbits had no tolerance for the niches in Australia.
B. The rabbits were able to live in niches that Australian animals
could not live in.
C. The rabbits had a high tolerance for the abiotic factors in
Australia.
D. The rabbits were smarter than the Australian predators.

The answer is C ( ◠‿◠ )

Answers

The answer you are looking for is C

Write five sentences about the ethical Issues of genetically modified food ?

Answers

Answer:

Five sets of ethical concerns have been raised about GM crops: potential harm to human health; potential damage to the environment; negative impact on traditional farming practice; excessive corporate dominance; and the 'unnaturalness' of the technology.

Mira analyzed oxygen and carbon dioxide in inhaled and exhaled air. she found that the percentages of both gases were different in each. what other gas would most likely also have different amounts in inhaled and exhaled air? ozone (o3) hydrogen (h2) water vapor (h2o) sulfur dioxide (so2)

Answers

The amount of different gases varies in environment. Just like oxygen and carbon dioxide, Water vapor also have different amounts in inhaled and exhaled air.

What is breathing?

Breathing is the process of inhaling oxygen and removing carbon dioxide.

During breathing amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide,while during exhalation 16.4% of oxygen and 4.4% of carbon dioxide is there.

The reason behind such variation is that cells use oxygen from the inhaled air to release energy and give out carbon dioxide as a byproduct.

Water vapor is also inhaled and exhaled in different amounts just like oxygen and carbon dioxide.

Thus, the correct option is C.

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name a fat soluble vitamin manufactured by the human body​

Answers

Vitamin D and Vitamin K

how do decomposers support plants to get nutrients​

Answers

Answer:

They convert nitrites in the soil into nitrates, or the nutrients that support plants. These help with their growth and development.

Explanation:

Hope this helps!

why it unsparing that coral bleaching can occur with water as well as warm

Answers

Answer:

Warmer water temperatures can result in coral bleaching. When water is too warm, corals will expel the algae (zooxanthellae) living in their tissues causing the coral to turn completely white. This is called coral bleaching.

Explanation:

Mammals that live in the Arctic Ocean have a large amount of blubber, which is a fatty tissue just beneath the skin.

Which statement best relates why these animals have so much blubber?
Lipids in blubber insulate the animals from cold water.
Proteins in blubber help the animals move to stay warm.
Carbohydrates in blubber provide all the energy that the animals need to stay warm.
Nucleic acids help build the lipids in blubber, which keep animals warm by regulating cell activities

Answers

Answer:

Mammals that live in the Arctic Ocean have a large amount of blubber, which is a fatty tissue just beneath the skin. Which statement best relates to why these animals have so much blubber? Lipids in blubber insulate the animals from cold water.

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If flying squirrels were brought to australia, what do you predict would happen?.

Answers

Answer:

they would die

Explanation:

they would propadly die because they need big, not too warm forests and that is not in Australia

What is an advantage of flowering plants.

Answers

Answer:

Flowering plants are very important for the ecosystem and the humans.

Explanation:

Flowering plants are plants that bear flowers and fruits. They are necessary in order for the plant to produce seeds and allow seeds to exist generation after generation. They also help different insects and plants for pollination.

what are some examples of directional selection

Answers

Answer:

An example of directional selection is fossil records that show that the size of the black bears in Europe decreased during interglacial periods of the ice ages, but increased during each glacial period. Another example is the beak size in a population of finches.

Recognizing the influence of subjective personal experiences and beliefs is the foundation of the __________ that humanistic theorists use to explain personality. a. behavioral perspective b. person-centered approach c. self-perception theory d. phenomenological approach please select the best answer from the choices provided a b c d

Answers

Humanistic psychologists allows growth by creating awareness and self-understanding. The influence of subjective personal experiences and beliefs is the base of the phenomenological approach.

What is phenomenological approach?

The phenomenological approach is a qualitative inquiry that focuses on experiential, lived aspects of a particular construct.

This method describes  meanings of experiences of human life. It focuses on research questions such as the feeling during the experience a particular situation.

The influence of subjective personal experiences and beliefs is the base of the phenomenological approach that is used by humanistic theorists to explain personality.

Thus, the correct option is D.

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Why can't you see the orbits of Earth, Mercury, Venus, and Mars in the diagram of the solar
system?

Answers

Answer:

please provide a diagram

Explanation:

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