Phylum Porifera• Sessile filter feeders• Either asymmetrical or radially symmetrical• Body organized around a system of water canals and chambers• Skeletal elements may be (spicules) composed of calcium carbonate or silicon dioxide (silica)• Spongin present in some; tissue-grade organization.• Approximately 9,000 species - take the quiz
{"name":"Phylum Porifera• Sessile filter feeders• Either asymmetrical or radially symmetrical• Body organized around a system of water canals and chambers• Skeletal elements may be (spicules) composed of calcium carbonate or silicon dioxide (silica)• Spongin present in some; tissue-grade organization.• Approximately 9,000 species - take the quiz", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"What type of feeders are Phylum Porifera?, How are Phylum Porifera's bodies organized?, What are the skeletal elements of Phylum Porifera composed of?","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}
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