Define what ectothermic and endothermic mean? Bell Ringer Define what ectothermic and endothermic mean?

C-Notes – Chapter 4 (Yellow Text) Vertebrates – FISH Cold-blooded (ectothermic) Get oxygen through gills. Have scales and fins Lay eggs in water Live in the water, have swim bladder (↑↓) Ex. – shark, bass, clown fish

C-Notes – Chapter 4 (Yellow Text) Vertebrates – AMPHIBIANS Cold-blooded, Skin must stay moist (except toads) Breath in water with gills, land with lungs Go through metamorphosis (change appearance) Lay jelly-like eggs in water Frog and salamanders can breath through smooth moist skin Ex. – frogs, toads, salamanders

C-Notes – Chapter 4 (Yellow Text) Vertebrates – REPTILES Cold-blooded Have scales or plates (dry skin) Most lay eggs with softer shells (on land) Breath with lungs Ex. – alligator, lizards, snakes

C-Notes – Chapter 4 (Yellow Text) Vertebrates – BIRDS Warm-blooded (endothermic) Lay hard shelled eggs, have feathers Have a beak, wings, two feet, hollow bones Breath with lungs Ex. – sparrow, hawk, penguin, ostrich

C-Notes – Chapter 4 (Yellow Text) Vertebrates – MAMMALS Warm-blooded Breath with lungs, most have teeth Babies are born alive Have fur or hair, produce milk to feed young Ex. – people, dogs, whales, mice

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