February 27, 2017

Homework Help: Biology

Posted by mysterychicken on Monday, March 8, 2010 at 2:38pm.

1. Sponges
a. are nonsymmetrical and have oscula
b. lack organization into tissues and organs but have specialized cells
c. possess cells that are capable of recognizing other sponge cells and have a simple digestive system
d. both a and b
I'm so confused on this question, because I think it's all of them...?


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