narcisomtz123 narcisomtz123

15-09-2019
Health

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What is a blastocyst?

a zygote covering to prevent sperm from entering

a solid mass of about one thousand cells

a two-celled developing structure

a sphere of cells surrounding a hollow center

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Аноним Аноним

15-09-2019

Answer:

I would say A Sphere of cells surrounding a hallow center.

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ivydreams ivydreams

16-09-2019

It’s a cyst, so I’d believe it would be the second answer.

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