Across
- 5. the natural changes that take place during the life of an organism
- 6. the addition of mass to an organism and the formation of new cells
- 9. arranged in an ordered way
- 10. the reaction to stimulus
Down
- 1. the production of offspring
- 2. a group of organisms that can breed with one another and produce fertile offspring
- 3. a person who studies biology
- 4. anything in either environment and causes a reaction by the organism
- 7. anything that has or once had all the characteristics of living organisms
- 8. the science of life