PhoCa8ngDihfm7i PhoCa8ngDihfm7i

01-11-2016
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I WOUDNT MIND SOME HELP

All multicellular organisms begin as a single cell. Within four or five days, that first cell multiplies into a ball-like structure of about 100 cells. What is this structure called?

A. Blastocyst
B. Heart
C. Placenta
D. Blood

Respuesta :

TooNashty TooNashty

01-11-2016

That structure is called an A. Blastocyst

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