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OpenStudy (anonymous):
As water flows in and out of their bodies, _______ take in oxygen and food. A. jellyfish B. insects C. sponges D. flatworms
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OpenStudy (anonymous):
C
OpenStudy (petiteme):
Sponges :D
OpenStudy (petiteme):
They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells.
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