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