Phylum Porifera Flashcards by Thomas Ambrosia | Brainscape

Q

Sclerospongiae

A

Silica and calcium carbonate spicules

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Q

Calcerea

A

Spicules of calcium carbonate

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Q

Hexactinellida

A

“Glass sponges” silica skeletons

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Q

Demospongiae

A

Protein skeletons

95% of sponges

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