what is the function of folds and villi

Answers

Answer 1

Answer:

The inner wall of the small intestine is covered by numerous folds of mucous membrane called plicae circulares. The surface of these folds contains tiny projections called villi and microvilli, which further increase the total area for absorption.

Explanation:

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Related Questions

anyone know what crystal this is?

Answers

Answer:

its a diamond crystal because its

What are the three layers that make up the body of a Cnidarian?

A. endoderm, mesoderm, ectoderm
B. endoderm, mesoglea, ectoderm
C. ectoderm, mesoderm, mesoglea
D. endoderm, mesoglea, epidermis

Answers

The endoderm is the inner layer ('endo' for 'within'), and the ectoderm is the outer layer ('ecto' for 'outer'). If there was a third layer it would be called the mesoderm, 'meso' for 'middle'. But cnidarians do not have this middle layer. Germ layers develop during gastrulation.

Answer:

endoderm, mesoglea, ectoderm

Explanation:

took the test

____ is the process in which light energy is transformed into food energy.
life
photosynthesis
abiotic
biotic

Answers

Option B: Photosynthesis.

Answer:

B

Explanation:

I did the test


Define the term variation as it relates to living organisms.

Answers

In biology, variation refers to any difference between cells, individuals, or groups of organisms of any species caused by genetic differences (genotypic variation) or the effect of environmental conditions on the manifestation of genetic potentials (phenotypic variation).

CAN SOMEONE PLEASE HELP!!!!!!!!!!

Rearrange the sentences into their most logical sequence to describe the process of energy extraction from glucose

Pyruvic acid passes from the cytoplasm into the mitochondrion.

A series of reactions break and rearrange carbon bonds to release energy and carbon dioxide.

Three molecules of ATP are produced with every pair of high-energy electrons that pass through the electron transport chain.

In total, about 36 ATP molecules are released from one molecule of glucose.

A small amount of energy is released when the bonds in a 6-carbon glucose are broken and rearranged into 3-carbon pyruvic acid molecules.

Answers

Answer:

A series if reaction break and rrarrange csrbon bonds to release energy ang carbon dioxide.

The correct sequence of energy extraction from glucose is 5, 1, 2, 3, 4 to complete the oxidation of glucose.

What is glycolysis?

Thus, the phases of cellular respiration should be performed in the following order: Krebs cycle, oxidative decarboxylation, electron transport chain, and oxidative phosphorylation are the steps in glycolysis.

The process of energy extraction from glucose:

When the bonds in 6-carbon glucose are broken and reorganized into 3-carbon pyruvic acid molecules, a little amount of energy is produced. Pyruvic acid enters the mitochondrion from the cytoplasm.

Carbon bonds are broken and rearranged in a sequence of events that release energy and carbon dioxide.

Every pair of high-energy electrons travels through the electron transport chain resulting in the production of three molecules of ATP. One glucose molecule releases roughly 36 ATP molecules in total.

Therefore,  the process of energy extraction from glucose start from pyruvate forming and end with the ATP formation.

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The atomic mass of the most common isotope of magnesium is

Answers

Answer:

23.98504 or 24mg

Explanation:

What does tonicity mean

Answers

the pattern of tones or stress in speech .

I need help please guys help me

Answers

Answer:

Choose a specific topic related to nutrition, and do some research on it (Wikipedia is always a good place to start). Maybe look at a few health blogs for inspiration and just to see the writing style (be sure not to copy them though!)

Answer:

Your topic (Nutritional blog post) explain the benefits of having proper nutrition and why should we do it. List down items we may sacrifice (ex. eating junk food) but the good effects this will bring us. Cite what will happen if we have healthy nutrition and back it up with evidence (Ex. A professional science study in 1993 has found that people who have healthy nutrition are less likely to disease [THIS IS ONLY EXAMPLE!]) Next, recommend some healthy foods or make a nutritional health diet for all the days in the week, balancing carbohydrates and giving the right amount of nutrition and calories.

Explanation:

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Why should we see the sticks motion well before we see its color?

Answers

Answer:

the surface of an object reflects some colors and absorbs all the others.

correct me if i'm wrong :)

Distinguish the characteristics of three (3) types of rocks are essential for soil formation ​

Answers

igneous, sedimentary, and metamorphic

Which of the following correctly describes the structural arrangement of the cell membrane?

Answers

Answer is number 56

What is most likely the identity of the biome, and why?

Answers

Answer:

The primary factor which determines a biome is the climate. Temperature and precipitation essentially determines what kind of growing season or soil quality the terrain may have,which therefore affects the growth of plants living there.

Other factors may include: humidity, pollution (such as air, noise...), daylight intensity

Explanation:

can we get more context

The ___ separates the heart into two parts. HELPP

Answers

Answer:

The septum

Explanation:

The septum is a thick wall of muscle that divides the heart. It separates the left and right sides of the heart.

An organism's phenotype is the way its _________ is expressed.

Answers

Genotype. Phenotype is what you physically see, genotype is what the genes code for

What type of molecule is represented by the model below?
Carbohydrate
Steroid
Fat
Nucleic acid

Answers

Fat it is ok I correct

why do the scientists feel comfortable with calling the hybrids a new species

Answers

Answer:

1 . They have the potential to interbreed in nature . 2 . They can produce viable offspring if they do interbreed—that is, their offspring are healthy enough to produce offspring of their own . and also its new,

Explanation:

3. If you drink a lot of water but do not consume additional solutes, how will the specific gravity of the urine be affected

Answers

Anti Diuretic hormones kicks in

In order for meiosis to create four, genetically different gametes, DNA replication must occur. Which of these best describes when DNA replication would occur during meiosis?
A) prior to meiosis I
B) prior to meiosis II
C) prophase I in meiosis I
D) prior to meiosis I and meiosis II​

Answers

Answer:

I guess prlor to melosis is the right answer

what was the first life form on earth based on the diagram above

Answers

Answer:

The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old. The signals consisted of a type of carbon molecule that is produced by living things.

Explanation:

What reptilian taxon is extant (has at least some members that are still living; opposite of extinct)

Answers

Answer:

Squamata

Source:

Chapter 34: The vertebrates - Quizlet

Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. The images below show embryos of different species at different stages of development.
Label the images below with 1-4 from least developed to most developed.
A. 4.
B. 1
C.
3
D. 2
2. Which image above do you think is a human? Explain.
Gizmo Warm-up
ont fambra from

Answers

The answer is a (4) I hope this helps out a bit

write components of xylem and phylem ?

Answers

Xylem contains tracheids, vessels, xylem parenchyma and xylem fibre.Tracheids: They are elongated, tubular dead cells with tapering end walls.Vessels: These are also known as trachea. They are elongated, tubular dead cells. They are joined to each other by end to end forming a continuous pipe. The cells are thick and lignified.Xylem parenchyma: They are also called wood parenchyma. This is the only living tissue of xylem. Xylem fibre: They are dead cells with thick walled fibre.

Phloem consists of sieve tubes, companion cells, phloem parenchyma and phloem fibres.Sieve tubes: These are elongated, tubular living cells arranged in a row, with their perforated end walls forming a sieve. They are non-nucleated. Their protoplasm are inter-connected through sieve plates. They possess vacuoles.Companion cell: They are elongated, lens-shaped cells containing dense cytoplasm and prominent nuclei. These cells maintain connection with sieve cells through pits.Phloem parenchyma: They are living thin walled parenchyma cells.Phloem fibre: They are also known as bast fibre. They are elongated fibre like sclerenchymatous dead cells with thick walls containing pits and interlocked ends. Phloem fibre are the only dead cells in phloem.

Hope you could get an idea from here.

Doubt clarification - use comment section.

Arable land is land is no longer able to promote growth of agricultural changes.

True
False

Answers

The answer is false

Answer:

False

Explanation:

I took the test

1
Which two ways do the black-tailed jackrabbit and the kit fox interact with the
desert environment?
Select two correct answers.
A
Black-tailed Jackrabbits and Kit Foxes interact with the desert
environment by providing food for plants.
Black-tailed Jackrabbits and Kit Foxes use water and air from the
environment to survive.
B
>
с
Black-tailed Jackrabbits and Kit Foxes obtain energy from consuming
other organisms.
Black-tailed Jackrabbits and Kit Foxes consume plants but do not
need the environment for survival
D
E
Black-tailed Jackrabbits and Kit Foxes meet their needs in their
environment by eating only plants for food.

Answers

Answer:

b

Explanation:

You are a red blood cell in the LEFT VENTRICLE of the heart. In the correct sequence, which blood vessels must you pass through in order to get down to the RIGHT wrist (the palmar arches)?

Answers

The correct sequence of blood vessels that must be passed to get to the Right wrist is :

From the Left ventricle --> Aorta ------> Brachiocephalic artery ------> Right subclavian artery -----> Right axillary artery -----> Right brachial artery-------> Right ulnar and radial arteries -----> Right wrist .

The Aorta is the first passage( blood vessel) of the oxygenated blood, pumped out of the left ventricle of the heart, It forms an arch through which other arteries like Brachiocephalic artery originates to distribute blood to the upper parts.

The right subclavian, axillary and brachial all supply blood to the right arm while the Right brachial artery further divides into Right Ulnar and radial arteries.

Hence we can conclude that The correct sequence of blood vessels that must be passed to get to the Right wrist is :

From the Left ventricle --> Aorta ------> Brachiocephalic artery ------> Right subclavian artery -----> Right axillary artery -----> Right brachial artery-------> Right ulnar and radial arteries -----> Right wrist .

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Which cell type would have the highest concentration of oxygen on a bright, sunny day?

Answers

Answer: The Pulmonary vein blood vessel carries oxygenated blood from the lungs back to the heart. Therefore, it carries the highest concentration of oxygen.

Explanation: i think is the answer not sure hope it help this question :)

Only 3% of the water on earth is fresh water, the kind we need for drinking and growing food. Of that 3% , how much is locked in ice caps, and permanent snow.

Answers

This means that only a very small amount of fresh water is readily available for human use, making it important to conserve and protect this valuable resource.

When answering questions on the Brainly platform, it is important to be factually accurate, professional, and friendly. Answers should be concise and provide relevant information to the question being asked. It is also important to use proper grammar and spelling, and to avoid irrelevant or extraneous details.

Additionally, the terms provided in the student question should be incorporated into the answer, which is as follows:Only 3% of the water on earth is fresh water, the kind we need for drinking and growing food. Of that 3%, about 68.7% is locked in ice caps and permanent snow.

To learn more about : water

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When you are getting too cold,
goosebumps and shivering leads to
heating of your body. Which type of
feedback loop is this?
А
a negative feedback loop
3
a positive feedback loop

Answers

Answer:

negative

Explanation:

Jennipher was asked by her mother to take a certain kind of fish in a bucket full of water so that she can prepare it for meal.when jenipher touched the fish she felt like an electric shock to her hand. what behavioural mechanism did the fish generate?​

Answers

The fish use reacting behavioural mechanism in order to protect itself from the danger.

The fish uses reacting behavioural mechanism when the fish sense any type of danger surrounds it. This behaviour is a type of defense mechanisms which is used to defend and protect itself.

The fish apply electric shock in order to protect itself from the attackers and give harm to the other organisms which comes in contact with it so we can conclude that the fish use reacting behavioural mechanism in order to protect itself from the danger.

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help :(
Which of the following explains a similarity between the current farm bill and the Agricultural Adjustment Act (AAA) of 1933?


Both include payments given directly to farmers.

Both require the government to buy from certain growers.

Both set standard prices for produce commodities.

Both are designed to only benefit impoverished people.

Answers

Answer:

both set standard prices for produces commodities.

Answer:

Both require the government to buy from certain growers .

Hope this helps you !!
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