The first days and weeks after conception (the germinal and embryonic periods) are _____ for body formation, but health during the entire fetal period affects the _____.

Question

Quizplus · Accepted Answer

The embryonic period is a critical time for brain formation, but health during the entire fetal period affects the heart. Both options A and C include "sensitive" as a descriptor for the first days and weeks after conception, but only option B correctly identifies this time as critical for brain formation. Option D incorrectly suggests that only the heart is affected during the fetal period.

The First Days and Weeks After Conception (The Germinal and Embryonic