Question

teratology is the study of: variables that increase the risk of prenatal abnormalities. how birthing methods affect the weight of the infant. how genes and the environment interact during development. variables that improve the health of a fetus.

Explanation:

Teratology focuses on the study of congenital abnormalities and agents (teratogens) that cause them. It explores how genes and the environment interact during development to lead to such abnormalities.

Answer:

how genes and the environment interact during development.