Select the correct sequence of animal developmental events.
A) fertilization → cleavage → organ formation → gastrula
B) fertilization → cleavage → gastrula → organ formation
C) fertilization → gastrula → cleavage → organ formation
D) fertilization → organ formation → gastrula → cleavage
E) fertilization → organ formation → cleavage → gastrula

Question

Quizplus · Accepted Answer

The correct sequence of animal developmental events starts with fertilization, followed by cleavage (rapid cell division without growth), then formation of the gastrula (where germ layers form), and finally organ formation.

Select the Correct Sequence of Animal Developmental Events