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.
that secrete their products, hormones, directly into the blood rather than through a duct.
The answer would be D because the proportion is 6:9, which could be simplified to 2:3
