March 4 Reptiles and mammals

March 4 Reptiles and mammals - Amniote Vertebrates I....

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Amniote Vertebrates I. “Advances” A. Extraembryonic membranes a. amnion b. yolk sac c. chorion d. allantois B. Air breathing using only lungs C. Immune system REPTILES I. Description and features A. Anapsid or diapsid amniote tetrapods B. Internal fertilization C. Amniotic eggs with a more or less strong shell D. Ectothermal or Endothermal E. Respiration by lungs II. “Advances” we will see A. Dry keratinized skin with scales or feathers B. Arterial and venous blood flow separated in the heart C. Specialized lungs III. Features of the environment A. Independence from water B. Habitats from aquatic to desert IV. External features A. Keritinized skin - scales or feathers B. Molting C. More erect posture D. some forms with wings V. Function A. Locomotion 1. head with increased flexibility of the neck 2. rotation of the limbs 3. skeleton highly modified depending on life style B. Feeding 1. tongue 2. gizzard C. Circulation and gas exchange 1. separation of atria and (in birds) ventricles 2. lungs alviolate or (in birds) with air sacs 3. thermoregulation
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D. Nervous and Sensory Systems
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March 4 Reptiles and mammals - Amniote Vertebrates I....

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