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14 Cards in this Set
- Front
- Back
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Lophotrochozoa
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Lophophore- feeding structure
-ring of tentacles around mouth Trochophore- larva -ring of cillia around larva |
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Examples of Lophophore
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Brachiopods
Bryozoans |
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Examples of Trochophore
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Rotifers
Platyalminthes mollusks Annelid |
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Rotifers
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-Trochophores
-pseudocoelom -no metamorphosis which means that the larva looks like the adult movement-cillia or sessile feed- cillia beat and bring plankton to mouth reproductive- Pathenogenisis- reproduces by mitosis -can have sexual reproduction |
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Acoelomorpha
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-No coelom
-bilateral symetry -triploblast Feed: detritus, small protists Movement: swim/glide cillia helps movement Reproduce: assexually and sexually have both sperm and egg |
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What are the 3 kinds of Platyhelminthes?
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Turbellarian (the colorful worms on the bottom of the ocean)
Cestodes (tapeworms) Trematodes (flukes) |
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Turbellarian
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-marine/terrestrial
-flat -free living (not with a host) only has mouth and no anus -blind sac digestive system |
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Cestode
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Tape worms
-parasites of digestive tract -feed: diffusion -doesn't have a gut because uses host's guts -scolex(head) with attatchment devices |
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Trematodes
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Flukes
-parasites of mesoderm (like livers) -live in tissue/blood supply 2 host reproductive lifestyle |
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Schistosoma
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part of the Trematodes
-swim into skin and burrow until hits blood supply -defintite host are humans -intermediate host is the snail -eggs that shed have to be picked up by mollusk |
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Annelida
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Segmented Worms
-have coelom -hydrostatic skeleton |
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Name the two lineages of Annelida
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Polychaeta
Clitellata |
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Talk about Polychaeta
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-mostly marine
-burrowers with their parapoda -filter feeders but also hunt small animals -asexual and sexual reproduction release their eggs directly into the water |
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Clitellata
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Have two kinds: Oligochaetes and Hirudinea
Oligochaetes are earthworms -deposit feeders -freshwater/teresstrial -reproduction: Oviparity Hirudinea: leaches - ecto parasitic |
