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Biology 7 Online
OpenStudy (anonymous):

Which of the following features do the nervous systems of a hydra, a flatwrom, and a fish have in common? A. They all contain nerve cells. B. They all contain ganglia. C. They all control behavior of the animal. D. They all have brains.

OpenStudy (anonymous):

and explaine why please!

OpenStudy (anonymous):

@ganeshie8

OpenStudy (anonymous):

@Nurali

OpenStudy (anonymous):

@perl

OpenStudy (anonymous):

PLEASSSEEE

OpenStudy (anonymous):

@arabpride

OpenStudy (anonymous):

PLEASE NURALI

OpenStudy (king.void.):

Any ideas?

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