Across
- 1. The reaction to a stimulus
- 4. Addition of mass to an organism
- 7. The process of natural changes to an organism
- 8. Causes some sort of reaction
- 9. The science of life
- 10. Any inherited characteristic
Down
- 2. Anything with characteristics
- 3. the production of an offspring
- 5. occurs in all living things
- 6. a group of organisms that can breed with one another