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Select the Letter of the Correct Answer for Each Blank

question 6

Multiple Choice

Select the letter of the correct answer for each blank. A ____ is the main idea and supporting points of a longer work, presented in the writer's own words.


Definitions:

Mesoderm

The mesoderm is the middle layer of an embryo in early development, which gives rise to muscles, bones, and much of the circulatory, reproductive, and excretory systems.

Ectoderm

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

Placenta

An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing baby while removing waste.

Yolk

Nutritious material in many animal eggs.

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