Answer:
I think the answer is most likely D
<span>A.it increases the efficiency with which the body delivers oxygen and nutrients to its cells</span>
The answer to the question is D
Family members share their genes, as well as their environment, lifestyles, and habits. Everyone can recognize traits such as curly hair, dimples, leanness, or athletic ability that run in their families. Risks for diseases such as asthma, diabetes, cancer, and heart disease also run in families
