All of the following are features representing blastula except
A)each cell is in contact with a different set of neighboring cells.
B)some blastomeres are larger than the others and thus not equivalent.
C)differentiation into notochord and the hollow nerve chord takes place.
D)different blastomeres receive different components of the egg cytoplasm.
E)some blastomeres may divide slower than others depending on the amount of yolk.

Question

Quizplus · Accepted Answer

Differentiation into notochord and hollow nerve cord occurs during gastrulation, which is a stage that occurs after the blastula stage. Therefore, this is not a feature representing blastula.

All of the Following Are Features Representing Blastula Except