A.An enzyme functions to increase the rate of a chemical reaction.
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.
Like animals, plants must maintain an internal balance, or homeostasis.
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Answer:
So blood can reach the fetus
Explanation: