What Happens During Gastrulation

question 67

Multiple Choice

What happens during gastrulation?

• A)Cells migrate to form a layered structure.
• B)A fertilized egg divides mitotically to form a ball of cells.
• C)A gastrula is transformed into a blastula.
• D)The embryo divides into distinct zones of cell division, cell expansion, and cell differentiation.
• E)All of these choices are correct.

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