Across
- 3. keeping living conditions by adaptation
- 4. organisms that reproduce among each other
- 6. actions that species perform to survive
- 7. of similar characteristics
- 10. the way organisms act to survive
- 11. changes suffered by a species
- 13. the set of places and conditions to live
- 14. brittish botanist
- 16. natural skills to survive
- 17. the ability to change color to merge
- 18. the action of choosing
Down
- 1. change between similar species
- 2. proof
- 5. an idea with proven evidence
- 8. the beginning of something
- 9. related to biology
- 12. the ability to act like another organism
- 15. from the nature
- 16. an early relative
- 18. the organization of a body