Question

the embryo/fetus is most susceptible to damage from harmful environmental factors during
a. the first trimester
b. premature labor
c. toxoplasmosis
d. preeclampsia
please select the best answer from the choices provided
a
b
c
d

Explanation:

During the first trimester, major organ systems of the embryo/fetus are forming. Harmful environmental factors (like certain drugs, infections, radiation) can disrupt this critical development process more severely than in later stages. Premature labor (B) is a complication of pregnancy, toxoplasmosis (C) is an infection, and preeclampsia (D) is a pregnancy - related hypertensive disorder. None of these directly relate to the period of highest susceptibility to environmental damage like the first trimester does.

Answer:

A. the first trimester