The developing human is most susceptible to the occurrence of birth defects from radiation or chemical insults
A) at the time of birth.
B) during the third trimester of gestation.
C) during the first trimester of gestation.
D) when it is a zygote.
E) during the final stages of organ formation.

Question

Quizplus · Accepted Answer

The first trimester of gestation is when the developing human is most susceptible to the occurrence of birth defects from radiation or chemical insults. This is because during this time, the major organs and body systems are forming.

The Developing Human Is Most Susceptible to the Occurrence of Birth