Figure 18 - Mammalia (hair) Monotremes (Platypus, still...

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Animalia Porifera True Tissues Cnidaria (radial symmetry) Bilateral Symmetry Protostomes Deuterostomes Echinodermata Chordata Tunicates and Lancets Craniates Hagfish Vertebrates Lampreys Jawed Vertebrates Chondrichthyes Osteichthyes Vertebrata Lampreys Jawed Vertebrates Chondrichthyes (sharks and rays) Osteichthyes (bony fishes) Ray-finned Fishes (24,000 species) Fleshy-finned Fishes Coelacanths (2 species) Internal Nostrils Lungfishes (5 species) Tetrapoda (26,000 species) Tetrapoda (four limbs) Amphibia (frogs, salamanders, caecilians) Amniota (lay shelled eggs)
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Unformatted text preview: Mammalia (hair) Monotremes (Platypus, still lays eggs) Marsupials Placentals Reptilia (scaly skin, many lay eggs) Chelonia (turtles) Lepidosauria (lizards and snakes) Archosauria (dinosaurs etc.) Crocodylia (crocs) Aves (birds Reptilia (scaly skin, many lay eggs) Ancestral colonial protist No true tissues True tissues Bilateral symmetry Radial symmetry Eumetazoans Bilaterians Protostomes Deuterostomes Sponges Cnidarians Echinoderms Chordates Flatworms Molluscs Annelids Arthropods Nematodes Figure 18.4...
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This note was uploaded on 10/07/2009 for the course BIO G 109 taught by Professor Winkler,d. during the Fall '06 term at Cornell University (Engineering School).

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Figure 18 - Mammalia (hair) Monotremes (Platypus, still...

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