Across
- 2. chain how organisms get energy from eating other organisms
- 4. microscopic plants
- 7. wearing down of Earth's surface often by water or wind
- 8. an object too small to be seen with our eyes
- 10. an animal without a backbone
- 12. an animal that kills and eats other animals
- 14. an animal that eats dead or decaying material
- 16. organisms at risk of becoming extinct
- 17. land saturated by water at least part of the year
Down
- 1. microscopic animals
- 3. an animal that eats plants to survive
- 5. an animal that eats both meat and plants to survive
- 6. an animal that eats meat to survive
- 9. an animal that is eaten by another animal
- 11. a place in an ecosystem where an animal lives
- 13. an animal with a backbone
- 15. something an animal is born with, or does, to survive
