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Question

Arrange the stages in gestation in correct order:

A

Early cleavage for determining different parts

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B

Developing ability in sperm to penetrate egg

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C

Developing ability in egg to receive sperm

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D

Differentiation of gametes

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Solution

The correct option is A

Early cleavage for determining different parts


The time during which a young animal grows inside its mother is known as gestation. There are three general phases of gestation. The germinal stage is the period of gestation from fertilization or conception, when the egg meets the sperm, to implantation of the embryo in the uterus. The embryonic stage of gestation is the period after implantation, during which all of the major organs and structures within the growing mammal are formed. Once the embryo is fully formed, it expands, grows, and continues to develop in what is known as the foetal development stage. This is when the mother has major physical changes and becomes visibly pregnant. The foetal development stage concludes at birth.


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