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BIO 335: Porifera Exam Question With Verified Answers.
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BIO 335: Porifera Exam Question With Verified Answers. Phylum porifera (sponges) - answerfilter feeders skeleton composed of spicules marine and fresh water covered in ostium and osculum have choanocytes Synapomorphy - internal system of pores and canals Unique characteristics: spicules, ch...
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