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