Across
- 4. animals that kill and eat other animals
- 6. groups of living things that are closely related
- 11. a case or covering made of silk
- 12. to lose an old skin and grow a new one
- 13. animals that have 6 legs and 1 or 2 pairs of wings
Down
- 1. parts of an animal's body that do certain jobs
- 2. parts of the body that make chemicals needed by the body
- 3. the middle, yellow part of an egg that contains food for a growing embryo
- 5. back and forth movements
- 7. animals that are killed and eaten by other animals
- 8. an offspring that has not hatched out of an egg
- 9. a poison made by an animal such as a spider
- 10. in spiders, the biting parts of the mouth