Across
- 5. seasonal movement of animals
- 6. a resting state in a plane
- 7. a mechanism of evolution
- 11. animals that aren't built for survival
- 12. all the animals in the ecosystems
Down
- 1. humans choosing what to breed
- 2. all people born and living at the same time
- 3. an organism adapting to its environment
- 4. a change or difference in organisms
- 8. a large group of organisms
- 9. the tissue in plants conducts water
- 10. the process of mutating