Organogenesis occurs when during embryonic development?
A)In the tenth week of pregnancy
B)In the third month of pregnancy
C)In the fourth week of pregnancy
D)During the last trimester of pregnancy

Question

Quizplus · Accepted Answer

Organogenesis occurs during the fourth week of pregnancy, which is when the embryo is developing its major organs and organ systems. By the end of this period, the brain and nervous system, heart and circulatory system, lungs, gut, and other vital organs have begun to form.

Organogenesis Occurs When During Embryonic Development