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The developing embryo Is a hollow sphere...

The developing embryo Is a hollow sphere of cells, one cell thick during the ____ stage

A

cleavage

B

polar body

C

gastrula

D

blastula.

Text Solution

Verified by Experts

The correct Answer is:
D
Development in animals results from the cleavage divisions of the zygote. The zygote divides first into two cells, then these divide into four, and so on. Until it becomes a cell mass called the morula. Through more divisions the morula becomes a hollow ball of cells which is called the blastula .
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