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Animal Adaptations in Chordates: Reptiles and Birds

Explore the similarities and characteristics shared by reptiles, birds, and other chordates, including adaptations for dry land, unique egg structures, heart anatomy, and thermoregulation.

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Animal Adaptations in Chordates: Reptiles and Birds

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  1. Warm up • What characteristics are similar between fish and amphibians? • What characteristic do both of these animal groups share with all the rest of the chordates?

  2. REPTILES

  3. Characteristics… Must have adaptations to live on dry land Dry, hard, plate-like scales Thick skin Amniotic egg

  4. Yolk; energy/nutrient storage for embryo Rubbery shell for protection

  5. Egg Comparison…

  6. Double-looped circulatory system Three (ish)-chambered heart Atria Ventricle

  7. ECTOTHERMIC -Body temperature is controlled by the surroundings

  8. Birds

  9. Adaptations Feathers for flying Different types for different jobs

  10. Bones thin and hollow for flight Amniotic egg

  11. Double-looped circulatory system • 4 Complete Heart Chambers

  12. ENDOTHERMIC Animal regulates its own body temp High body temps (over 104oF) High metabolism Pant to cool! Eat a lot

  13. Reptile Bird

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