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Instructions: Identify the Terms and Briefly State Their Historical Significance

question 95

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Instructions: Identify the terms and briefly state their historical significance.
Chang'an


Definitions:

Mesoderm

The middle layer of an embryo in early development, which gives rise to muscles, bones, and other related structures.

Pituitary Gland

A small, pea-sized gland located at the base of the brain, responsible for the production and secretion of hormones that regulate many bodily functions.

Gastrulation

An early embryonic process in which the single-layered blastula is reorganized into a multilayered structure known as the gastrula, forming the basic body plan.

Ectoderm

The outermost layer of cells or tissue of an embryo in early development, giving rise to the outer layer of skin, nails, hair, and nervous system.

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