Across
- 3. first fish class
- 4. the kingdom Vertebrates are part of
- 6. organisms that primarily eat plants
- 8. the organism needs to consume other organisms for nutrition
- 11. offspring are carried in a pouch
- 12. human impact on vertebrates involving trees
- 13. the class humans are part of
Down
- 1. large dangerous animal within Class Chondrichthyes
- 2. cold-blooded and externally regulate body temperature
- 3. live on land and water
- 5. do reptiles have internal or external fertilization?
- 7. do fishes have internal or external fertilization?
- 9. warm-blooded and internally regulate body temperature
- 10. the animals with feathers