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17 Cards in this Set

  • Front
  • Back
Protostomes
Lophotrochozoa
Ecdysozoa
Deuterostomes
Echinodermata
Chordata
choanoflagellates
single celled
out group for multicellularity
Acelomorpha
outgroup for coelomates
bilateria
Coelomates
Protostomes (first mouth)
Deuterostomes (second mouth)
Acoelomate
Pseudocoelomate
Coelomate
no cavity
false cavity
true cavity
Common bilateria traits
multicellularity
tissues, triploblast
bilateral symmetry cephalization
Lophotrochozoa
Platyhelminthes
Mollusca
Annelida
others, rotifera
Ecdysozoa
Arthropods
Nematoda
Tardigrades
Phylum Platyhelminthes
acoelomate
flatworms - possible primitive member
Lophotrochozoa
Phylum Annelida
600 myo
segmentation
earthworms leech polychates
internal fertilization
Lophotrochozoa
Phylum Mollusca
shell, mantle(secrets shell), radula(feeding), muscular foot
Polyplacophora (chitons), Bivalvia, Cephalopoda, Gastropoda
Lophotrochozoa
Phylum Arthropods
one million species
Trilobites, Arachnids, Crustaceans, Uniramians(insects)
modified segments
hemocoel- reduced coelom
exoskeleton, jointed appendages, fused and modified segments, metamorphosis, molting
external fertilization
Ecdysozoa
Phylum Nematoda
Pseudocoelomate
Cylindrical body
roundworms
cuticle, epidermis
Ecdysozoa
Phylum Tardigrades
water bears
small, water dwelling
Ecdysozoa
Phylum Echinoderms
radial symmetry
external fertilization
tube feet, water vascular system
sea; stars, urchins, dollars, cucumbers
Deuterostome
Phylum Chordates
Notochord
dorsal hollow nerve cord
muscular postanal tail
gill slits
Deuterostome