Tashina is studying the process of prenatal development and is interested in the way the environment affects a baby's prenatal development. She spends time studying how birth defects can occur in a developing baby due to environmental influences called Group of answer choices teratogens. fetuses. zygotes. embryos.

Teratogens

Explanation:

A teratogen is an agent, which can cause a birth defect. It is usually something in the environment that the mother may be exposed to during her pregnancy. It could be a prescribed medication, a street drug, alcohol use, or a disease present in the mother which could increase the chance for the baby to be born with a birth defect. 80 per cent of child defects are caused by teratogens.