sponges
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Last updated 4:19 PM on 9/13/25
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11 Terms
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phylum
porifera
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filter feeders
feed by passing water across structures that trap tiny food bits
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choanocytes
create currents; trap & ingest food bits (phagocytosis)
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amoebocytes
distribute food
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body supported by
hard spicules and protein fibers (spongin)
made by amoebocytes in mesohyl
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silica spicules
sand and glass
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calcium carbonate spicules
susceptible to dissolving with changes in pH
bad with global warming issues
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reproduction
fragmentation
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sexual reproduction
hermaphroditic
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no gonads
gametes form in mesohyl (amoebocytes)
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larvae
flagellated → part of the life cycle where the sponge moves
Note 
Flashcards (20)