Multiple Choice
You observe an animal embryo that is spherical in shape. Transverse sections through the embryo show that the outer wall consists of three layers of cells, and that there is a single axis of symmetry. The interior of the embryo is a fluid-filled cavity. The most recent developmental process to affect this embryo directly was
A) organogenesis.
B) gastrulation.
C) cleavage.
D) morphogenesis.
E) neurulation.
Correct Answer:
Verified
Correct Answer:
Verified
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