Phylum Porifera Flashcards by Charlie Law | Brainscape

Q

Class Calcarea

A

calcium carbonate spicules

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Q

Class Hexactinellida

A

glass sponges

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Q

Class Demospongiae

A

soft sponges

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Q

symmetry

A

asymmetrical

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Q

movement type

A

sessile

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Q

feeding

A

filter feeding

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Q

purpose of pores

A

water flows in one direction to bring in food particles/oxygen

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Q

ostia

A

water flows in

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Q

oscula

A

water flows out

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Q

choanocytes “collar cells”

A

have flagella to whip food into cell to digest

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Q

spongin

A

squishy texture

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Q

spicules

A

hard texture

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Q

asconoid (type of sponge canal system)

A

least complex - flagellated spongocoel

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Q

syconoid (type of sponge canal system)

A

moderately complex - flagellated canal

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Q

leuconoid (type of sponge canal system)

A

most complex - flagellated chambers

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