Answer:
Enzymes speed up the chemical reactions in living cells.
Explanation:
An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell. The enzyme is not destroyed during the reaction and is used over and over.
Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation:
C. a green parrot has an allele for green feathers and an allele for blue feathers.