1. Warm up 1.What characteristics are similar between fish and amphibians? 2.What characteristic do both of these animal groups share with all the rest of the chordates?

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

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

5. Egg Comparison…

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

9. ECTOTHERMIC -Body temperature is controlled by the surroundings

12.  Feathers  for flying  Different types for different jobs

13.  Bones  thin and hollow for flight  Amniotic egg

14.  Double-looped circulatory system  4 Complete Heart Chambers

15.  ENDOTHERMIC  Animal regulates its own body temp  High body temps (over 104 o F)  High metabolism  Pant to cool!  Eat a lot