Across
- 2. a trait that helps an organism to survive and reproduce
- 3. drugs that block the growth and reproduction of bacteria
- 5. Part of the cell cycle when the chromosomes separate
- 6. an organism that has two of the same alleles for a trait
- 8. the powerhouse of the cell
- 9. organelle that is responsible for packaging proteins
- 10. an organism's physical appearance or visible traits
- 13. The stufy of living organisms
- 15. organelle which makes proteins
- 17. diffusion of water through a membrane
- 19. an organism that makes its own food
Down
- 1. a change in a gene or chromosome
- 4. process where DNA is copied into mRNA
- 7. what is made when two gametes combine
- 11. all the living and non-living things in an area
- 12. a relationship between two organisms in which both benefit
- 14. the basic unit of structure in all living things
- 16. The gradual change in a species over generations
- 18. monomer of a carbohydrate
- 19. main energy source that cells use for most of their work