Zoology Test #1: Phylum Porifera Flashcards

1
Q

Which class has spicules made of calcium carbonate

A

Calcarea

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2
Q

Which class has spicules made of silica (glass), six rayed

A

Hexactinellida

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3
Q

Which class has spicules made of silica or spongin fibers, or both

A

Demospongiae

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4
Q

Which class has spicules made of silica, small and simple or absent

A

Homoscleromorpha

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5
Q

3 body forms of sponges from advanced to least advanced

A

Ascon, Sycon, Leucon

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6
Q

Three types of asexual reproduction in sponges

A

budding, gemmules, and regeneration

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7
Q

Three materials that can makes up the skeleton of sponges

A

Silica, calcium carbonate, and spongin

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8
Q

All adults are ___ filter feeders?

A

sessile

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9
Q

What is the sexual reproduction?

A

eggs and sperm; free swimming ciliated larvae

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