What’s the common name of this organism?
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What’s the common name of this organism?
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Sponge
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What is the phylum?
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Porifera
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Sponges are at the ______ level of organization
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Sponges are at the cellular level of
organization
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What is the name for excurrent pores?
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Osculum
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What is the function of choanocytes?
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Choanocytes form much of the sponge body and function in filter feeding and intracellular digestion. Choanocytes help distinguish phylum porifera.
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What type of symmetry do sponges have?
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Sponges are either asymmetrical or radially
symmetrical.
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Incurrent openings or pores are
termed_______.
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Incurrent openings or pores are termed ostia.
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Sponges have an exoskeleton formed of
what?
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1. Spongin--spongy fibers of a protein material
2. Spicules – rigid crystalline structures made of calcium or silica
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The central cavity of a sponge is called what?
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Spongocoel