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2 years ago

What adaptations does the small intestine make for absorption?

2 answers:

8 0

The adaptations in which the small intestine make for absorption is the presence of a finger-like structure called villi.

<h3>What is Villi?</h3>

These are finger-like structures found in the small intestine which increase the surface area for absorption.

They possess blood vessel which ensures the nutrients are transported to other parts of the body.

Read more about Villi here brainly.com/question/1293500

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IrinaK [193]2 years ago

8 0

The small intestines are well adapted for absorbing nutrients during digestion by being very long, having villi and microvilli that increase surface area, using muscular contractions to move and mix food, and receiving and housing digestive enzymes and bile that help the breakdown of food.

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7) The main result of photosynthesis is A) global warming. B) food production. C) carbon dioxide production. D) decreased atmosp

kenny6666 [7]

Answer:

B, food production

Explanation:

The plant is producing food for itself

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3 years ago

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What is the definition of epistasis?

ollegr [7]

The definition of Epistasis in gene biology is Choice D: when the allele of one gene masks the phenotype of another gene

Definition:

When the phenotypic effect of alleles at one gene are masked by alleles of another gene.

In essence, a gene is said to be epistatic when its presence suppresses the effect of a gene at another locus.

It is important to know that Epistatic genes are often called inhibiting genes because of their effect on other genes which are described as hypostatic.

Additionally, there are six common types of epistasis gene interactions:

Dominant

Dominant inhibitory,

Duplicate dominant,

Duplicate recessive,

Polymeric gene interaction,

Recessive.

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3 years ago

Joletta thinks she knows how to cure cancer. A family member of hers had cancer, but he did not die. Joletta noticed that he at

ASHA 777 [7]

Definitely C) she did not have enough information to prove her theory to be right.

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3 years ago

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Suppose the human trait for hair type is controlled by a simple dominant and recessive relationship at one locus. Curly hair, C,

myrzilka [38]

Answer:

A) The frequency of the dominant allele, C $= 0.4376$

B) frequency of the heterozygous genotype, Cc $= 0.2461$

Explanation:

Given -

Curly hair, C, is the dominant allele, and straight hair, c, is the recessive allele

Number of students with curly hair is $37$

Thus frequency of genotype "CC"

$= q^{2} = \frac{37}{117} \\= 0.3162$

Thus, frequency of allele "q"

$= \sqrt{0.3162} \\= 0.5623$

As per Hardy Weinberg's first equation-

$p+q=1$

Substituting the value of q, we get -

$p+0.5623=1\\p= 0.4376$

As per Hardy Weinberg's second equation -

$p^2+q^2+2pq=1\\$

Substituting the values of "p" and "q" we get -

$0.4376^{2} + 0.3162+2pq = 1\\2pq = 0.2461\\$

Hence,

A) The frequency of the dominant allele, C $= 0.4376$

B) frequency of the heterozygous genotype, Cc $= 0.2461$

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3 years ago

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2. What are the limitations of the geocentric model that led to the creation of the heliocentric

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Answer:

The model cannot explain why planets appear to go backward and make loops in the sky. Explanation: As an example, the observation of the planet Mars shows that there are times where it seems to be moving forward at first, then back, and then forward again

Explanation:

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3 years ago