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Which of the Following Is True

question 83

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Which of the following is true?


Definitions:

Embryonic Stage

A critical phase of prenatal development that spans from implantation of the zygote in the uterine wall through the eighth week, where major organs and structures begin to form.

Zygote

A fertilized ovum (egg cell).

Uterine Wall

The muscular wall of the uterus, which thickens during the menstrual cycle and pregnancy, playing a key role in pregnancy and childbirth.

Fetus

A developing mammal or human from the ninth week after conception until birth.

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