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Animal Diversity
Characteristics of Animalia Phyla
16
Biology
12th Grade
04/23/2007

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Term
Protifera
Definition
Sponges. Parazoa. No symmmetry. No gut openings.
Term
Cnidaria
Definition
Jellyfish, Corals. Eumetazoa. 2 Germ layers. Radial symmetry. 1 Gut opening
Term
Platyhelminthes
Definition
Flatworms. Eumetazoa. 3 Germ layers. Bilateral symmetry. 1 Gut opening. Acoelomate
Term
Nematoda
Definition
Roundworms. Eumetazoa. 3 Germ layers. Bilateral symmetry. 2 Gut openings. Pseudocoelomate.
Term
Rotifera
Definition
Rotifers. Eumetazoa. 3 Germ layers. Bilateral symmetry. 2 Gut openings. Pseudocoelomate
Term
Mollusca
Definition
Clams, snails, octopuses. Eumetazoa. 3 Germ layers. Bilateral symmetry. 2 Gut openings. Coelomate. Protostome
Term
Annelida
Definition
Segmented worms. Eumetazoa. 3 Germ layers. Bilateral symmetry. 2 Gut openings. Coelomate. Protostome
Term
Arthropoda
Definition
Insects, spiders, crustaceans. Eumetazoa. 3 Germ layers. Bilateral symmetry. 2 Gut openings. Coelomate. Protostome
Term
Echinodermata
Definition
Sea stars, sea urchins. Eumetazoa. 3 Germ layers. Raial symmetry. 2 Gut openings. Coelomate. Deuterostome
Term
Chordata
Definition
Vertebrates. Eumetazoa. 3 Germ layers. Bilateral symmetry. 2 Gut openings. Coelomate. Deuterostome
Term
Invertebrates
Definition
Tunicates, lancelets. Eumetazoa. 3 Gut openings. Bilateral symmetry. 2 Gut openings. Coelomate. Deuterostome
Term
Jawless vertebrate chordates
Definition
Hagfish, Lamprays. Cartilagenous skeleton, cranium. Cold blooded. Flexible notochord. Simple digestive tract, no stomach. Gill slits. Body armor, marine craniates
Term
Fish
Definition
Gnathastomes, chondrichtryan-sharks. Cartilage, bones. 2 chamber heart. Color vision, different senses, electric. No stomach, jaws. Gill slits. Lay eggs
Term
Amphibians
Definition
Eurodela-salamanders, frogs. Cartilage, bones. 3 chamber, cold. Brain, spinal cord, poor blurry vision. Long tongue. Breath through skin in air or water. Water>land, lay eggs in water
Term
Reptiles(includes birds)
Definition
Testubins-turtles, crocidalia-crocs,squamata-lizards, avis-birds. Light for flight. 3 chamber cold, 4 chamber warm. 12 cervical nerves, well developed. Gizzards, crop. Lungs, no diaphragm. Scales, lay eggs or live birth, claws. Feathers, communication, good hearing
Term
Mammals
Definition
Monotremes-lay eggs, Marsupials-immature young, eutherians-mature young. Bones and cartilage. 4 chamber warm. Most developed system. Closed organs. Lungs, diaphragm. Mammary glands
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