| A | B |
|---|
| Chordata | phylum name for animals with a vertebral column |
| cold-blooded | animals whose body temperature changes slightly with the environment |
| warm-blooded | animals whose body temperature remains constant |
| Reptiles | lay leathery-eggs & can live in dry places |
| Fishes | some have cartilage skeletons & wet scales |
| Amphibians | have gills in 1 stage & lungs in another |
| Birds | have hollow bones that are filled with air |
| Mammals | are covered with fur or hair; most give birth to live young |
| mammary glands | structure that produces milk to feed young; found in mammals |
| sea horse, perch | examples of fishes |
| penguin, peacock | examples of birds |
| turtles, lizards | examples of reptiles |
| newts, toads | examples of amphibians |
| elephant | largest land mammal |
| bears, duckbill platypus, opossums | examples of mammals |
