Which of the following events occurs first during embryonic development?
A)gastrulation
B)neurulation
C)cleavage
D)organ formation

Question

Quizplus · Accepted Answer

Cleavage, or early cell division, occurs before gastrulation and neurulation, which are both processes that occur during the formation of the three germ layers. Organ formation happens much later in embryonic development, after the germ layers have formed.

Which of the Following Events Occurs First During Embryonic Development