What is the term for the outer layer of the blastocyst that eventually contributes to forming the placenta?

Type: MCQ • Marks: 1

A. Trophoblast

B. Inner cell mass

C. Ectoderm

D. Zygote

Explanation

The trophoblast layer surrounds the blastocyst and interfaces with maternal tissue to build the placenta.

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Class 9th Science (MCQ)

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