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Immediately after fertilization, the egg is called a _____.

fetus

blastocyst

embryo

zygote

User Kaydeen
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2 Answers

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Immediately after fertilization the egg is called a... zygote.
User Yakir Manor
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6 votes

Immediately after fertilization, the egg is called a zygote. It is called a zygote until it divides into 16 cells. Embryo is first stage of the zygote’s development where its cells multiply to form their designated functions (differentiation), while fetus refers to a point in the embryo’s development where it takes on a more human form, and some bodily functions begin to work.

User Gary Qian
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