Across
- 1. addition of mass to an organism
- 4. Reaction
- 5. Anything, interna or external that causes a reaction
- 6. results from changes over time
- 8. Classification of organisms
- 9. an individual animal, plant, or single-celled life form.
Down
- 2. regulation of internal conditions to support life
- 3. natural changes over the lifetime of an organism
- 7. the science of life