Across
- 3. structures that are found outside, or around
- 6. to rest through the winter
- 8. multiple parts working together
- 10. having to do with water
- 12. animals with no backbone
- 13. all the members of one kind of organism
Down
- 1. animals with a backbone
- 2. the ability to blend in to the environment
- 4. traits to help an organism survive
- 5. when one living thing looks like another thing
- 7. to make again or more of
- 9. organ system that helps with breathing
- 11. structures that are found inside, or within