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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Definitions:

Glomerulus

A group of capillaries in the renal corpuscle.

Renal Corpuscle

Corpuscle that is composed of the glomerulus and the glomerular capsule. The filtration of blood occurs here.

Capillaries

The smallest blood vessels in the body's circulatory system, responsible for the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste substances between blood and tissue cells.

Retroperitoneal

An anatomical term that means behind the peritoneal cavity. It is where the kidneys lie.