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22 Cards in this Set

  • Front
  • Back
class oysters belong to
pelecypoda
T/F: any single part of star fish can regenerate
false
thin skin which covers the visceral hump
mantle
scraping, rasping? tounge of mollusk
radula
groove like structure that runs full length of starfish ray
ambulacral groove
water enters starfish through...
sieve plate
free swimming larva of echinoderms
bipinnaria
secrectes shell of mollusk
mantle
structure containing digestive organs of mollusk
visceral hump
structure through which water enters the clam
incurrent siphon
class of mollusks that undergo torsion in early development
gastropoda
vertral surface of starfish
oral
2-shelled mollusks belong to the class
pelecypoda
larva form of mollusk
trochophore
in starfish~ function in gas exchange and waste removal
skin gills
outer stomach
cardiac stomach
most complex class of molusca
cephalapoda
major mean of diving mollusks into classes is....
shell
transports water from the sieve plate to the ring canal
stone canal
2 evolutionary links between annelids and mollusks
1. incurrent siphon
2. trochophore (larva form)
invertabrate phylum that chordates are closest relates to
echinodermata (starfish)
why are chordates most closely related to echinodermata phylum of invertibrates
both are deuterostome