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Reptile and Bird

Reptile and Bird . Teacher wrap up. Reptiles . Behaviors used to regulate body temperature Basking burrowing . Snake scales overlap to help them retain water . Amniotic egg. Terrestrial Requires more energy than amphibian Better heart Better respiration

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Reptile and Bird

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  1. Reptile and Bird Teacher wrap up

  2. Reptiles • Behaviors used to regulate body temperature Basking burrowing

  3. Snake scales overlap to help them retain water

  4. Amniotic egg

  5. Terrestrial • Requires more energy than amphibian • Better heart • Better respiration • Double loop circulation – same as amphibian • Almost 4 chambered heart – picture on next slide

  6. There is some mixing of the oxygen rich and oxygen poor blood in the ventricle. Slight disadvantage when compared to full 4 chambered heart. Crocodile has a full four chambered heart Right Atrium Left Atrium Right Ventricle Left Ventricle

  7. Birds • True flight • Avoid hunters • Mating chances increase • Avoid weather • Feathers • Better parents • Double loop circulation • Four chambered heart • Endothermic

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