Fill in the Letter of the Word That Best Fits

question 71

Essay

Fill in the letter of the word that best fits in each sentence. Use each letter only once.

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Definitions:

Placenta

This organ, developing within the uterus during pregnancy, functions to feed the fetus with necessary nutrients and oxygen and clear out its waste products.

Gestational Age

The age of an embryo or fetus (or the duration of the pregnancy) starting from the first day of the mother's last menstrual period.

Thirty-Seven

A number, specifically the integer following thirty-six and preceding thirty-eight.

Mesoderm

The middle layer of an embryo in early development, which gives rise to muscles, bones, and blood vessels.