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?
Must have adaptations to live on dry land Dry, hard, plate-like scales Thick skin Amniotic egg
Rubbery shell for protection Yolk; energy/nutrient storage for embryo
Egg Comparison…
Atria Ventricle Double-looped circulatory system Three (ish)-chambered heart
ECTOTHERMIC -Body temperature is controlled by the surroundings
Feathers for flying Different types for different jobs
Bones thin and hollow for flight Amniotic egg
Double-looped circulatory system 4 Complete Heart Chambers
ENDOTHERMIC Animal regulates its own body temp High body temps (over 104 o F) High metabolism Pant to cool! Eat a lot