The small intestine has special structures, called villi, which help absorption of digested food. Which of the following is NOT a feature?
B1. Good blood supply
B2. Impermeable walls
B3. Large surface area
B4. Thin layer of cells

Answers

Answer 1

B2) Impermeable walls

Villi together with it's microvilli tremendously increase surface area of absorption. And hence supports effective absorption of nutrients into blood. Villi have permeable membranes . Thus, nutrients can easily get their way through them.


Related Questions

What type of small insects do some ants “farm”?

Answers

Answer:

Ants and aphids have a special relationship, mutualistic in nature

Explanation:

hey each benefit from one another; ants protect aphids and aphids feed ants. Aphids feed their farmer ants a sweet honeydew liquid in exchange for protection from predators.

How do we investigate translocation using the ringing experiment?

Answers

Translocation can be investigated by using the ringing experiment, while peeling and removing the bark and phloem of a plant.

What is translocation?

Translocation can be defined as a biological process which involves the transfer (movement) of water and other soluble nutrients from one part of a plant to another, especially through the xylem and phloem.

Generally, translocation can be investigated by using the ringing experiment, while peeling and removing the bark and phloem of a plant. Also, if sucrose is present, it would cause a swell and thus indicating translocation.

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Starch is digested in the small intestine. the small intestine contains many structures that absorb glucose.

Answers

The answer is large intestine
Villi in the small intestine

What types of animals are simians?

Answers

Simians are a group of higher primates animals such as monkeys, apes, and humans.

What are simians?

Simians are a taxonomic category of animals under the primate order.

Primates are divided into Simians and Prosimians. Simians are more advanced than Prosimians.

Humans belong to the primate order and are classified as Simians along with other animals such as monkeys and apes.

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complete the sentence:

primary consumers receive about _________ of the energy available in biomass from producers.

A. 100 percent
B. 50 percent
C. 35 percent
D. 10 percent

Answers

Answer:

D. 10 percent

Explanation:

The answer is D. 10 percent

m
When people share a common resource
without agreement or regulation of its
use,
A. it is likely to become overused
B. it will last forever
C. it will never be overused
D. the possibilities are unknown

Answers

The answer would be D
Logically, A if it is a finite resource especially

A car with a mass of 1,324 kilograms, traveling at a speed of 20 meters/second, crashes into a wall and stops. What is the kinetic energy after this perfectly inelastic collision?

Answers

The kinetic energy of a car with a mass of 1,324 kilograms, traveling at a speed of 20 meters seconds is 264800J.

How to calculate kinetic energy?

The kinetic energy of a moving car can be calculated using the following formula:

K.E = ½ × m × v²

Where;

K.E = kinetic energym = mass v = velocity

K.E = ½ × 1324 × 20²

K.E = 264800J

Therefore, the kinetic energy of a car with a mass of 1,324 kilograms, traveling at a speed of 20 meters seconds is 264800J.

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The first true antibiotic was __________, which was discovered by __________. View Available Hint(s)for Part A streptomyces; Selman Waksman penicillin; Alexander Fleming arsenic compounds; Paul Enrich sulfanilamide; Gerhart Domagk

Answers

Answer:

penicillin, Alexander Fleming

What is muscular dystrophy example of

Answers

Muscular dystrophy is an example of a genetically heritable disease that is autosomal dominant.

What are autosomal dominant diseases?

Autosomal dominant diseases or abnormalities are genetic diseases that are heritable just by inheriting an affected allele from either of the parents.

Unlike autosomal recessive diseases which require that alleles are inherited from the two parents, autosomal dominant diseases can be inherited from either of the parents.

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The smallest structure capable of performing all the basic functions of life is the.

Answers

Answer:

cell

Explanation

because is basic unit of life

The answer is cell because I’m it is

What is the name of the Coenzyme that binds with Acetyl Acid?

Answers

The name of the coenzyme is Coenzyme A.

Citric acid cycle

The intermediate step between glycolysis and the citric acid cycle is the production of acetyl-co A.

Acetyl-co A is produced by the oxidative decarboxylation of the pyruvate molecule generated from glycolysis in the matrix of the mitochondrion.

The pyruvate molecule is first transformed into an acetyl group. The enzyme, Coenzyme A, binds with the acetyl group to form acetyl-co A.  

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) If you are a good school agriclture focal person, what type of forming would you suggest to the school? Give reasons. Teacher's Signature. ) If you are a good school agriclture focal person , what type of forming would you suggest to the school ? Give reasons . Teacher's Signature .​

Answers

Answer:

Farm-to-school programs are a great way to get students excited about healthy eating.

Explanation:

I need help can anyone please help me?

Answers

The genotypes and phenotypes of the offspring is determined by the parents.

What will be the  genotype and phenotype of the offspring of the cross?

Assuming G is dominant over g, the offspring of the cross between the parents whose genotypes are Gg and Gg are given below:

Gg x Gg = GG, Gg, gg, and Gg

Probability of  a gray offspring = 0.75

Probability of an albino offspring = 0.25

There are three possible genotypes; GG, gg, and Gg

There are two possible phenotypes; gray and albino

Probability of getting heterozygous offspring, Gg = 0.5

Probability of getting h0m0zygous offspring, GG and gg = 0.5

The color of the female is gray

The color of the male is gray

Assuming G is dominant over g, the offspring of the cross between the parents whose genotypes are gg and Gg are given below:

gg x Gg = Gg, Gg, gg, and gg

Probability of  a gray offspring = 0.5

Probability of an albino offspring = 0.5

There are two possible genotypes; Gg, and Gg

There are two possible phenotypes; gray and albino

Probability of getting heterozygous offspring, Gg = 0.5

Probability of getting h0m0zygous offspring, gg = 0.5

The color of the female is albino

The color of the male is gray

Therefore, the genotypes and phenotypes of the offspring is determined by the parents.

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A solution that has an osmotic pressure less than that of red blood cells is called:.

Answers

The answer is Hypotonic

Select the correct answer from each drop-down menu.
The nervous system and the muscle system respond to stimuli to produce motion. The movements of
muscles are mostly voluntary. Involuntary movements occur in these muscles when the nerve impulse passes from a sensory neuron to a motor neuron via an interneuron in the
.

Answers

The nervous system and muscular system respond to stimuli to produce movement.

What is nervous impulse?

The nerve impulse corresponds to an electrical current that propagates through neurons, thanks to a process of membrane depolarization. This depolarization process occurs through stimuli and its function is to transmit certain information to other cells (nervous, muscular or glandular).

With this information, we can conclude that the nervous system and muscular system respond to stimuli to produce movement.

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Answer:

skeletal

spinal cord

Explanation:

just took test on edmentum and got 5/5

Sphingosine is not a component of:

Answers

According to the research, sphingosine is an aminoalcohol that forms ceramides and is not a component of cardiolipin.

What is sphingosine?

It is an aminoalcohol that is found in most of the sphingolipids of animal tissues.

It intervenes in cellular metabolic regulation processes related to lipid signaling pathways.

Therefore, we can conclude that according to the research, sphingosine is an aminoalcohol that forms ceramides and is not a component of cardiolipin.

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Correct Value: 12.75
8.5
8.4
8.4
8.3

Answers

I don't understand your question maybe try rephrasing?

A ________________ is a group of microbes growing in a nutrient-rich environment.

Answers

A culture is a group of microbes growing in a nutrient-rich environment.

What is culture?

A culture refer to a media which contain nutrients or nutritious substances that support the growth and replication of micro organisms.

Therefore, A culture is a group of microbes growing in a nutrient-rich environment.

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Endospores are resistent structures that contain cytoplasm and genetic material, and can ____________ when favorable conditions resume.

Answers

The blank space in the task content should be filled with; develop into new organisms.

What are endospores?

Endospores as their name implies are formed within the cells of bacteria as an alternative reproduction mode. The spores in discuss are formed within bacteria vegetative cells or mother cells known as sporangia. The endospores therefore are able to develop into new organisms provided that the conditions become favourable.

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proteins not expressed on normal cells but found on tumor cells are called _____.

Answers

Proteins not expressed on normal cells but found on tumor cells are called tumor specific antigen.

What are cancer cells?

Cancer cells are cells whose cells cycles and growth has been altered as a result of mutation in their DNA resulting in abnormally high growth rates.

Cancer cells are also called tumor cells.

Proteins that are expressed in tumor cells but not on normal cells are called tumor specific antigen.

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The bacterial species Heliobacter pylori has been associated with the formation of stomach ulcers. The bacteria burrows into the mucosal lining of the stomach, degrading it and forming a hole. What type of innate defense is this bacteria overcoming

Answers

The type of innate defense this bacteria is overcoming is referred to as mechanical barrier.

What is Innate defense?

This is referred to as the defense system which came with birth and they help protect the body from antigens.

The bacteria in this context also functions this way through overcoming mechanical barriers to attack the party of the body involved.

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What 4 features do all chordates have?

Answers

All chordates share some structures during at least some stage of their development. These are the notochord, nerve cord, pharyngeal slits, and tail.

What are chordates?

When talking about chordates we are referring to the chordate phylum. Individuals composing this group share four main structures,

Notochord

The notochord is a dorsal spine precursor from which the nervous system gets formed.

The notochord is present during the whole individual's life (like some tunicates) or during only the embryonary period (like vertebrates).

Nerve cord

The nerve cord is dorsally located, together with the notochord.

It is hollow, and, during embryogenesis, it might differentiate into a brain.

This cord connects external stimuli to the motor system to react to them.

Pharyngeal slits

Present only during a period of the embryonary stage. These slits give rise to different organs and structures like tonsils, ears, or gills.

Tail

All chordates have a tail in at least a period of the organism's development.  

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the membrane that forms a compartment inside the stroma is the ____

Answers

In chloroplasts there are structures known as thylakoids. The membrane that forms a compartment inside the stroma is the thylakoid membrane.

What is the chloroplast structure?

The structure of these organelles is as follows,

Chloroplasts are limited by an outer membrane and an inner one.

In between the two membranes, there is a space left called intermembrane space.

In the interior of the inner membrane, there is another space known the stroma.

Within the stroma, there is the third system of membranes, known as thylakoids.

Thylakoids are disk-shaped structures limited by a membrane, and in their interior, there is a space named thylakoid space.

These structures are arranged as piles, receiving the name of grana. Grana connects by a larger thylakoid membrane.

The photosynthetic pigments are placed in the thylakoids, where occurs light-dependent reactions.

According to this description, the membrane that forms a compartment inside the stroma is the thylakoid membrane.

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What do felicitated the fusion an active transport have in common

Answers

The felicitated the fusion and active transport have in common both transport proteins with energy expenditure.

What do active transport and facilitated diffusion have in common?

The Facilitated Diffusion it occurs with the aid of a carrier protein (permease), which binds to the substance and transports it into or out of the cell and Active Transport is  expended as it moves against a concentration gradient.

In this case, the two exchange the concentration inside the cell to the outside and transport only proteins with energy expenditure.

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Question 13 of 25 skin stem cells can only produce other skin cells. what does this indicate about skin stem cells?

Answers

Answer:

That they are unipotent

Jake wants to enrich the nitrogen content of his soil through fixation which crop can he use for this purpose

Answers

Answer:

He can use beans since it is a legume and legumes have root nodules that facilitate nitrogen fixation

A decrease in the autonomic tone of the smooth muscle in a blood vessel would result in:.

Answers

A decrease in the autonomic tone of the smooth muscle in a blood vessel would result in an increase in blood flow through the vessel.

Meaning of smooth muscle

smooth muscle can be defined as a muscle in the body that is non striated and involuntary in nature.

Smooth muscles are mostly found in hollow organs, passageways and tracts of some systems.

In conclusion, A decrease in the autonomic tone of the smooth muscle in a blood vessel would result in an increase in blood flow through the vessel.

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When you hold a mug of hot cocoa,you feel a change in temperture.how does the skin detect this change?

Answers

Answer:

sensory receptors in the skin detect the stimuli from the environment

Explanation:

What are the adheres junctions?

Answers

Adherens junctions (AJs) are defined as cell-cell adhesion complexes that are progressively assembled and disassembled.

What are Adherens junctions?

Adherens junctions (AJs) are defined as cell-cell adhesion complexes that are progressively assembled and disassembled. This assembling operation  allows cells within a tissue to respond to forces, biochemical signals as well as other structural changes in their microenvironment.

The functions of Adherens junctions are;

Initiate cell-cell contacts.Mediate the maturation.Maintenance of the contact.

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The p wave on an electrocardiogram (ecg) represents the depolarization of cells in the:

Answers

The p wave on an electrocardiogram (ecg) represents the depolarization of cells in the sinoatrial (SA) node.

What is sinoatrial node?

The sinoatrial node is close to the opening of the superior vena cava. This bundle of nerve tissue propagates electrical impulses and therefore governs sinus rhythm from minute to minute.

Electrocardiogram is a test, it is possible to detect the rhythm of the heart and the number of beats per minute.

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This is not english ITS RELIGION but inneed help Which excerpt from Annabel Lee provides the best evidence to support the conclusion that Annabel Lee was loyal? 55 mi / h = ____ ft / s Which word equation best describes the following formula equation: 4Al+3O22Al2O3?A. Four molecules of aluminum and three molecules of diatomic oxygen react to form two molecules of aluminum oxide.B. Four molecules of aluminum react with six molecules of oxide to form twelve molecules of aluminum oxide.C. Two molecules of aluminum oxide reacts to form three molecules of oxygen and four molecules of aluminum.D. Aluminum reacts with oxide to form aluminum oxide. Chloe bought an equal number of forks and spoons for a party. The forks were sold at 3 for 2$ and the spoons were sold at 4 for 3$. She spent 5$ more on spoons than on forks. How much did she spend altogether? Read the excerpt from act 3, scene 1, of Julius Caesar.CAESAR. 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