VERTEBRATES

Descripción

(Hemichordates & Chordates) Vertebrate Zoology Mapa Mental sobre VERTEBRATES, creado por Litty Carter el 23/04/2013.
Litty Carter
Mapa Mental por Litty Carter, actualizado hace más de 1 año
Litty Carter
Creado por Litty Carter hace más de 11 años
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Resumen del Recurso

VERTEBRATES
  1. Cambrian era
    1. Cranium, brain, paired eyes, vertebral column
      1. Cartilage and bone. Duplicate Hox gene complex
        1. Neural Crest
      2. Key Evolutionary Steps
        1. 1. HEAD: Craniates, complex movement and feeding
          1. 2. VERTEBRAL COLUMN: support
            1. 3. JAWS: predatory life
              1. 4. BONE: replaces cartilage support
                1. 5. LUNGS: Breathing air
                  1. 6. LEGS: move on land
                    1. 7. AMNIOTIC EGG: reproduce out of water
                      1. 8. INSULATION: feathers/fur
                        1. 9. MILK: suckling young
        2. EXTANT GROUPS
          1. Myxinoidea
            1. Hagfish
            2. Petromyzontia
              1. Lampreys
              2. Chondrichthes/Elasmobranchii
                1. Cartilaginous fish
                2. Osteichthyes
                  1. Bony fish
                  2. Amphibia
                    1. Frogs, toads, newts, salamanders
                    2. Reptilia
                      1. Crocodilians, snakes, dinosaurs
                      2. Aves
                        1. Birds
                        2. Mammalia
                          1. Mammals
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