suela6sviolenKeiann suela6sviolenKeiann

26-07-2016
Biology

Answered

A blastula is

Aa digestive organ.
Bthe innermost germ layer.
Ca layer of embryological tissue.
Da hollow ball of cells in an embryo.

Verified Answer :

ilikepiee ilikepiee

26-07-2016

hollow ball of cells

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