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TERM 1
Ediacaran
biota
DEFINITION 1
early group of large, soft-bodied multicellular
eukaryotesdates about 560 mya
TERM 2
early diverging animal groups
DEFINITION 2
Sponges & Cnidarians
TERM 3
Sponges
DEFINITION 3
phylum Porifera-filter feeders-lack true tissues
TERM 4
filter feeders
DEFINITION 4
capturing food particles suspended in H2O that passes
through their body
TERM 5
True tissues
DEFINITION 5
groups of cells that function as a single unit
TERM 6
Choanocytes
DEFINITION 6
flagellated collar cells, generate a water current through the
sponge and ingests suspended food
TERM 7
Amebocytes
DEFINITION 7
cells can transport transport nutrients to other cells of the
sponge body
TERM 8
Cnidarians
DEFINITION 8
Cnidaria is a phylum containing over 10,000 species of
animals found exclusively in aquatic and mostly marine
environments.Have true tissue cellsinclude both sessile
(don't move) and mobile forms