Gastrulation Is an Important Event in Early Embryonic Development

question 14

Multiple Choice

Gastrulation is an important event in early embryonic development. Which of the following is NOT a result of this process?

• A) determination of cell types as a result of cell-cell interactions
• B) movement and alignment of many embryonic cells
• C) formation of three embryonic cell layers
• D) formation of specialized plant tissues

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Definitions:

Tropic Hormone

A type of hormone that primarily affects the function of endocrine glands and regulates the secretion of other hormones.

Target Tissues

Specific tissues or cells in the body that are affected by hormones, drugs, or other active substances.

Hormone Secretion

The process by which hormones are released by glands and then enter the bloodstream to reach target organs.

Endocrine Secretions

Hormonal substances produced by glands of the endocrine system, released directly into the bloodstream.