Across
- 2. the edifference between a animal or and plant to live
- 3. an interlocking food chain
- 6. are slugs,snails, mussels
- 8. are cold-blooded vertebarte animals
- 10. farming in ways to help the earth
- 11. the biogical difference that occers
- 13. an individual plant or animal
Down
- 1. an animal with no backbone
- 4. outside skeleton
- 5. warmer wetter, or drier
- 7. such as crab, shirmp or lobster
- 8. such as spider or scorpian
- 9. a warm- blooded vertebarte animal
- 12. a animal with no spine