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-triploblastic
-bilateral symmetry
-anterior brain
-digestive tract (most)
-ventral nervous system
-embryonic blastospore becomes mouth
-spiral cleavage
protostomes
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wher coelom forms where mesoderm splits
schizocoelous
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what are the 2 major protostome clades?
lophotrocozoans, ecdysozoans
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what are the protostome clades based on?
DNA sequence analysis
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what has either a lophophore or a trocophore larval stage?
lophotrocozoans
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what do Bryozoans, Brachiopods, and Phoronids have?
lophophore
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what do Bryozoans, ribbon worms, annelids, and mollusks have?
trocophore
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what has a cuticle or exoskeleton (chitin) secreted by the epidermis. must undergo ecdysis to grow?
ecdysozoans
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what has a modified coelom?
arthropods
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what has a reduced coelom?
mollusks
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what are the 2 phylums of lophotrocozoans?
Bryozoa, Platyhelminthes
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what is the common name for Phylum Bryozoa?
moss animals
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what is the common name for Phylum Platyhelminthes?
flatworms
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which lophotrocozoan is
-coelomate
-has lophophore
-marine
-colonial
-reproduce sexually and asexually
Phylum Bryozoa
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which type of lophotrocozoan
-acoelomate
-unsegmented
-dorsoventrally flattened body
-gastrovascular cavity or no digestive tract
-some free living; most parasitic
Phylum Platyhelminthes (flatworms)
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what are the 3 classes of flatworms
Turbellaria, Trematoda, Cestoda
-
common name for Turbellaria?
turbellarians
-
what is an example of a turbellarian?
planaria
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what type of flatworm is free living, marine or freshwater, move via cillia or undulation, have ocelli (eyespots), monoeciuos?
turbellaria
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what is the common name for trematoda?
fluke
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what type of flatworm is the parasite or mollusks and vertebrates, inhabits digestive tract and/or liver, complex life cycles with intermediate hosts, mocoecious, some dioecious?
trematoda
-
example of Trematoda?
Fasciola hepatica (liver fluke), Schistosoma mansoni (blood fluke)
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what is the common name for cestoda?
tapeworm
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what type of flatworm are parasites of vertebrates, head has hooks and suckers, body composed of successice proglottids, monoecious?
Cestoda (tapeworm)
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what is an example of Cestoda (tapeworm)
Taenia proglottid
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what is pseudocoelomate, head with crown of cilia (corona), complete digestive tract, freshwater, dioecious, some parthenogic?
rotifera
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what is it called when an organism produces eggs without being fertilized?
partenogenic
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