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:

Hope this helps


Related Questions

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

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

Answers

Answer is number 56

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

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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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:

I did not write my own blog post because I feel that you should not rely on brainly too much for your answers, but here are some tips!

If you found this helpful, please [thanks] or [rate] If you are satisfied with my answer please mark as [brainliest]

Have a good day!

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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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).

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:

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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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

anyone know what crystal this is?

Answers

Answer:

its a diamond crystal because its

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

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:

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.

The atomic mass of the most common isotope of magnesium is

Answers

Answer:

23.98504 or 24mg

Explanation:

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

Answers

Fat it is ok I correct

____ 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

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 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

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 :)

What does tonicity mean

Answers

the pattern of tones or stress in speech .

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:

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

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

Answers

igneous, sedimentary, and metamorphic

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

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 !!

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.

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:

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 :)

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Which characteristics belong to a eukaryote?is usually multicellularcontains a nucleuscontains one cell typecontains membrane-bound organelles (in the image)What Is the noble gas configuration for strontium (atomic number = 38)? Given: He (atomic number = 2) Ne (atomic number = 10) Ar (atomic number = 18) Kr (atomic number = 36) B A [Kr 45Kr 5 What is the missing reason in the proof? Given: ABC is a right angle, D B C is a straight angle Prove: ABC A B D A horizontal line has points D, B, C. A line extends vertically from point B to point A. Angle A B C is a right angle. definition of angle bisector segment addition property definition of congruent angles transitive property Which of the following factors would LIMIT carrying capacity?A. Far from factories or roadsB. A large nearby riverC. Abundant foodD. A small space to live in Examine the following transaction: Dr. Accounts Receivable 4100 Cr. Allowance for Doubtful Accounts 4100 Dr. Cash 4100 Cr. Accounts Receivable 4100 2 points: What would be an appropriate journal entry descriptions for this transactions help is needed please!! Country A is a developing country that has a significant population and represents a sizable market for a wide range of products. It has a strong growth rate and is considered a regional economic driver. Based on this information, Country A can be classified as a ________ market. A person uses 400.8 kcal of energy to run a race. Convert the energy used for the race to the following energy units:(provide an answer in 4 significant figures) Calories calories Food Calories Joules KilojoulesHint: 1kcal=4.184kJ diffrences between pine tree and mango tree How does the formation of sea ice impact the density of the surrounding seawater?A. The formation of sea ice removes freshwater, leaving dissolved solids behind and increasing the density of seawater.B. The formation of sea ice removes freshwater, leaving dissolved solids behind and decreasing the density of seawater.C. The formation of sea ice removes freshwater and dissolved solids from seawater, leading to a decrease in density.D. The formation of sea ice removes freshwater and dissolved solids from seawater, leading to an increase in density Which of the following data is required for the calculation of occupancy ratio? A.Total number of saleable rooms B.No of room sold C.The days of period D.All of them above Chia ng t trong ngoc vi th qu kh n1) they used to drink beer for breakfast in England years ago2) Did anyone take English books away?3) He didn't clean the kitchen A solenoid has a length , a radius , and turns. The solenoid has a net resistance . A circular loop with radius is placed around the solenoid, such that it lies in a plane whose normal is aligned with the solenoid axis, and the center of the outer loop lies on the solenoid axis. The outer loop has a resistance . At a time , the solenoid is connected to a battery that supplies a potential . At a time , what current flows through the outer loop As soon as the people _______ (hear) the trumpet blast, they shouted a loud war cry. * Design a dynamic programming algorithm for the following problem. Find the maximum total sale price that can be obtained by cutting a rod of n units long into integer-length pieces if the sale price of a piece i units long is pi for i = 1, 2, . . . , n. What are the time and space efficiencies of your algorithm? In sweet peas, the genes for flower color and pollen grain shape are 11 cM apart. A pure-breeding purple flowering plant with round pollen grains is crossed to a pure-breeding red flowering plant with long pollen grains. The resulting F1 offspring are all purple flowering plants with long pollen grains. What percent of offspring from a test cross analysis of the F1 individuals would you expect to be purple flowering plants with long pollen grains Anyone know how to make website (PROFESSIONAL) is mucous an enzyme or harmone Determine the measure of the interior angle at vertex E.A. 50B. 90C. 30D. 150PLS REPLY FAST THIS IS URGENT A local moving company has collected data on the number of moves they have been asked to perform over the past three years.Moving is highly seasonal,so the owner/operator,who is both burly and highly educated,decides to apply the multiplicative seasonal method (based on a linear regression for total demand)to forecast the number of customers for the coming year.What is his forecast for each quarter? Year 1 Year 2 Year 3Quarter Demand Quarter Demand Quarter Demand1 20 1 27 1 332 40 2 45 2 45 3 45 3 55 3 554 30 4 40 4 40