Across
- 2. The preserved remains or trace of an organism
- 5. an inherited trait the increases an organisms chance to survive.
- 7. when a whole species is dead
- 10. A type of adaptation that involves the internal body system.
- 11. an adaptation that enables a species to blend into its environment
- 14. A change among organisms that becomes better suited to their environment
- 16. organisms with variation that will help them survive in the environment, live longer, compete, and reproduce
- 17. An English natural scientist who made the theory of evolution
- 18. the human practice of breeding animals to have desired traits
- 20. structures in different species that look the same because of common ancestry
Down
- 1. body parts that share similar function but not structure.
- 3. slight differences among an organism of the same species
- 4. the formation of species from evolution
- 6. a structure in a organism that no longer serves its original purpose
- 8. a change over-time
- 9. a person who studies plants and animals by observing them
- 12. being able to see similarities before birth
- 13. studies endangered species and finds ways to help them
- 15. A living thing
- 19. A group of similar organisms