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Material Type: Notes; Professor: Moodie; Class: General Biology II; Subject: Biology; University: Central Oregon Community College; Term: Unknown 2006;
Typology: Study notes
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Sponges
First Multicellularity PRECAMBRIAN Animals
~ 600- million years ago
First phyla to diverge
spongin
types of spicules
Sponges
incurrent canal
choanocyte
dermal pore
radial canal spongocoel
osculum
Sponges
incurrent canal
choanocyte
dermal pore
flagellated chamber
excurrent canal