Across
- 1. addition of mass to a living thing
- 6. last name of person who studied chimpanzees
- 7. a reaction
- 8. occurs in all living things
- 10. production of offspring
Down
- 2. arranged in an orderly way
- 3. process of natural changes
- 4. any inherited characteristics that results from change
- 5. the science of life
- 9. group of organisms that can breed with one another