Why is the digestive system considered a part of science?

The digestive system helps break down complex meals into the constituent parts the body can use: carbohydrates, proteins, fats, vitamins and minerals.

Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and drink must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body.

Explanation:

Missing choices:
a.Many of the alleles are homozygous.
b.There are fewer chromosomes present.
c.Many of the alleles for the traits are on different chromosomes.
d.Most of the alleles for the traits are on the same chromosome.

My
c.Many of the alleles for the traits are on different chromosomes.