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Vladimir79 [104]
3 years ago
12

Both the esophagus and the small intestine are involved in the digestion of food. The esophagus squeezes food into the stomach b

y wave-like muscle contractions. Peptidase enzymes in the small intestine break food molecules into smaller molecules.
Which statement best describes changes to food during digestion?
A) The muscle contractions result in physical changes, while the action of the peptidase results in chemical changes.
B) The muscle contractions and the action of the peptidase both result only in physical changes.
C) The muscle contractions result in chemical changes, while the action of the peptidase results in physical changes.
D) The muscle contractions and the action of the peptidase both result only in chemical changes.
Biology
2 answers:
zimovet [89]3 years ago
4 0

Answer:

A) The muscle contractions result in physical changes, while the action of the peptidase results in chemical changes.

Explanation:

sorry I took so long but this is ur answer hope this helped!...

lakkis [162]3 years ago
4 0
A the muscle contractions result in physical changes while the action of the peptidase results in chemical changes
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Answer:

C

Explanation:

This is a monohybrid cross between involving a gene coding for earlobe. The allele for free earlobe (F) is dominant over that of attached earlobe (f).

N.B: let F represent the gene involved.

A genotypic ratio is the ratio derived from the offsprings based on the actual genetic make-up and not based on their phenotypic appearance as in phenotypic ratio.

A homozygous individual is an individual having the same kind of alleles for a gene while a heterozygous individual is one that has two different alleles i.e. combination of the dominant and recessive allele.

The monohybrid cross is between an individual with attached earlobe (ff) i.e. homozygous recessive individual. (Note that, a recessive trait will only be expressed in a homozygous state) and a heterozygous free earlobeb individual (Ff). (See attached picture). Ff × ff

The resulting four offsprings will

be expected to have only two distinct genotypes i.e heterozygous (Ff) and homozygous recessive (ff) in an equal ratio i.e. 2:2 ~ 1:1

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3 years ago
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nirvana33 [79]
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