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!!!!!Inverts practical 2
Phylum Enchinodermata; Class Stelleroidea; Subclass Astroidea
10
Biology
Undergraduate 3
12/08/2009
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Term
member
 Definition
starfish
Term
symmetry
 Definition
pentamerous
Term
larval symmetry
 Definition
bilateral
Term
ossicles
 Definition
CaCO3 or MgCO3
Term
water movement
 Definition
water vascular system
Term
early bipinnaria
 Definition
gut; blatopore near one end (becomes anus)
Term
late bipinnaria
 Definition
ciliated lobes
Term
branchiolaria
 Definition
long larval arms (from ciliated lobes); 3 short arms w/ adhesive tip for adhesion before metamorphasis
Term
tube feet
 Definition
thin body wall, duogland adhesive system
Term
ray
 Definition
ossicles, spines, tube feet, pedicellariae (can grab); papulae (coelomic pouches)
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