Animal Kingdom
Two Types of Animals Animals Vertebrates Invertebrates
Vertebrates
Two Types of Vertebrates Ectothermic (cold-blooded) Endothermic (warm-blooded) body temp. changes with environment body temp. remains constant 1) fish 2) amphibians 3) reptiles 4) birds 5) mammals
Cold-Blooded Vertebrates Fish Cold-Blooded Vertebrates scales for protection gills for breathing fins for steering swim bladder for floating streamlined bodies most lay shell-less eggs
Cold-Blooded Vertebrates Amphibians Cold-Blooded Vertebrates live in water when young and on land as adults smooth, moist skin webbed, clawless feet breath with gills, lungs, and skin lay shell-less eggs
Reptiles dry, scaly skin clawed feet lay leathery shelled eggs breathe with lungs
Birds feathered wings clawed feet breathe with lungs Warm-Blooded Vertebrates feathered wings clawed feet breathe with lungs lay hard-shelled eggs hollow bones
Mammals feed young w/ mammary glands hair or fur clawed feet breathe with lungs give live birth (most) complex brains
Animals Invertebrates Vertebrates Porifera Fish Cnidaria Amphibians Worms Reptiles Mollusks Birds Echinoderms Mammals Arthropods