Across
- 2. millions of tiny chemical reactions
- 6. organism with many cells
- 7. a non-living thing in the environment
- 10. single-celled organisms
- 13. organisms who eat other things to get the suns energy
- 15. a living thing in the environment
Down
- 1. an organism's ability to maintain stable internal conditon
- 3. use of egg and sperm to produce offspring genetically different
- 4. produce identical copies of themselves
- 5. numbers or quantities
- 8. immature cells becoming mature cells
- 9. organisms who make their own food using sunlight
- 11. descriptions or observations
- 12. a cell with no nucleus
- 14. a cell with a nucleus