If a dominant allele pairs up with a recessive allele, the dominant allele is what is physically shown, it over powers the recessive allele.
For the first question, I would say a line graph. And the one about the human heart, I need some more information.
Answer:
It is a mixture
Explanation:
It is a mixture because a mixture contains tow or more elements
But a compound is made up of atoms
Answer:
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. The body breaks down nutrients from food and drink into carbohydrates, protein, fats, and vitamins.
