The Embryo Is Most Sensitive to Outside Influences That Can

question 58

Multiple Choice

The embryo is most sensitive to outside influences that can cause malformations during the

• A) first two weeks after fertilization.
• B) third to the ninth weeks of development.
• C) ninth to the sixteenth weeks of development.
• D) twelfth to the twentieth weeks of development.
• E) twenty-first to twenty-sixth weeks of development.