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10 Cards in this Set
- Front
- Back
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sponges
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simplest invertebrates
no tissue layers they have 2 cell layers asymmetrical body has no set shape sessile dont move as adulats asexual and sexual reproducation feed my filterinf water through their boduies |
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cnidarians
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hydra coral sea anemones and jelly fish
2 tissure layers degestive tract w/ one opening venoms cell to sting preyor predator |
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ectoderm
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outer layer of tisesure
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endoderm
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inner layer of tissure
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radial symmetry
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body cn be divided more than one way when looking down on it
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flatworms
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planaria tapeworms
they have a head and a direction that the organisms move in 3 tissue layers 1st simple organisms |
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Mesoderm
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middle tissue layer
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bilateral symmetry
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when loooking downt eh body can only be divided one way to get mirror images
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round worms
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2 openings for a digestive tract
exlcusive sexual reproduction |
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pseudocoelome
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simple body cavity
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