Cells move to new positions as an embryo establishes its three germ tissue layers during
A) the cortical reaction.
B) cleavage.
C) fertilization.
D) the acrosomal reaction.
E) gastrulation.

Question

Quizplus · Accepted Answer

Gastrulation is the process by which an embryo forms its three germ tissue layers: endoderm, mesoderm, and ectoderm. During gastrulation, cells move to new positions to form these layers, which will give rise to all of the body's tissues and organs.

Cells Move to New Positions as an Embryo Establishes Its