Which of the Following is Referred to as a Hollow

Question

Which of the following is referred to as a hollow ball of cells?​
A) ​cleavage
B) ​egg
C) ​gastrula
D) ​zygote
E) blastula​

Accepted Answer

The blastula is the stage of embryonic development that is characterized as a hollow ball of cells following the cleavage stage and preceding the gastrula stage.

Which of the following is referred to as a hollow ball of cells?​

Which of the following is referred to as a hollow ball of cells?