Unlike plant cells, animal cells move during development. Which of the following terms describes the reorganization of undifferentiated cells that results in the formation of an embryonic structure with multiple layers?
A)blastula formation
B)gastrula formation
C)organogenesis
D)cleavage

Question

Quizplus · Accepted Answer

Gastrula formation is the process by which undifferentiated cells rearrange themselves into a structure with multiple layers. This process occurs during animal development and results in the formation of the three germ layers: endoderm, mesoderm, and ectoderm. Blastula formation is the earlier stage in development where a hollow ball of cells is formed, while organogenesis is the formation of organs from these layers. Cleavage refers to the rapid cell division that takes place immediately after fertilization.

Unlike Plant Cells, Animal Cells Move During Development