Across
- 4. like the brain of a cell
- 7. differences
- 9. species that can interbreed
- 10. amino acid
- 12. a flaw in the making of an organism
- 13. small and makes up organisms
- 14. life on earth
- 15. physical characteristics
Down
- 1. makes up a person
- 2. can be harmful or not harmful in the body
- 3. made of ribose
- 5. made of deoxiribose
- 6. abiotic and biotic things all together
- 8. nonliving things
- 11. living things