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Cards In This Set
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 Internal buds found in freshwater sponges that are the result of asexual reproduction |
gemmules
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 The free-swimming flagellated larva of many sponges produced as the result of sexual reproduction. |
amphiblastula
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 Structural support for Porifera, may be made of silica or CaCO3. |
Spicules
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 What is this structure found in sponges and what is its function? |
choanocytes used in capture and filtering of small food particles.
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Body plan of a sponge characterized by a stalk-like spongocoel surrounded by a single layer of choanocytes.
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 Asconoid |
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The most complex body form of a sponge. The canal system is extensively branched. Small incurrent canals lead to flagellated chambers lined by choanocytes.
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 Leuconoid |
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Tubular body plan similar to the ascon sponge, but the body wall is folded. The "folds" form radial canals.
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 Syconoid (ex. Grantia) |
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Material of fiber network in Euspongia that makes it usable as bath sponges
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Spongin
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Path of water currents in Synconoid sponges
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Prosoplye ->flagellated chamber -> apopyle -> osculum
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What are parazoa?
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 Organism classified in the subkingdom parazoa exhibit differentiated cells but not true tissues. |
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What are the two means of asexual reproduction in sponges?
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Gemmules and budding
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Examples of hydrozoans.
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 Hyrda (freshwater), Obelia (colonial) |
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Characteristics of scyphozoans
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Marine, nematocysts capture prey,
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2 phases of cnidarian life cycle
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Asexual polyp and sexual medusa (no medusa in anthozoans)
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Definition of zooid
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One of the distinct individuals forming a colonial animal such as a bryozoan or hydrozoan
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