Across
- 3. study of very small life forms
- 4. the study of life
- 5. pertaining to air for life to exist
- 6. is a region that has the characteristics of climate, soil type, topography,and vegetation
- 9. someone who studies living things
Down
- 1. relating to biology or living organisms
- 2. two life forms living together
- 4. the production of complex molecules within living organisms or cells.
- 7. a life history
- 8. a living organism