__ | 1. | Adaptation | | A. | Have gills first, then lungs |
__ | 2. | Amphibians | | B. | Give live birth to their young |
__ | 3. | Amphibians- birth | | C. | Lay eggs in water |
__ | 4. | Birds- birth | | D. | Lay eggs on land |
__ | 5. | Birds and Mammals | | E. | Bury their eggs on land |
__ | 6. | Evolution | | F. | Survived the ice age because they were able to stay warm |
__ | 7. | Mammals- birth | | G. | The process where animals have become more complex over time |
__ | 8. | Mutation | | H. | A change which helps a species to survive |
__ | 9. | Reptiles | | I. | A change that happens in an individual animal |
__ | 10. | Reptiles- birth | | J. | Have scaley skin to absorb heat |