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The top documents tagged [calcareous sponges]
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Sponges and cnidarians 10 4 iordan delyan radoslav
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Cnidaria uploaded by BIBEKANANDA BAR-9804343179
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4 invertebrates
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Phylum: Porifera The Sponges. D. Class Calcarea (Calcispongiae) 1. These are calcareous sponges with spicules of calcium carbonate. 2. The spicules are
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Sponge Systematics Important for studying evolution and in the search for bioactive compounds. Morphology ; Limited to type and structure of skeleton &
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Phylum Porifera Sponges. Porifera Sponges – Living on Earth for at least 540 million years – Most sponges live in the ocean Arctic to the tropics shallow
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