Across
- 3. a simple, safe, and effective way of protecting you against harmful diseases
- 4. an organism that harbors another organism
- 7. medicines that can fight bacterial infections
- 10. an organism whose cells have a nucleus
- 12. pox a highly contagious disease
- 15. the structure in a cell that contains the chromosomes
- 16. systems a cell that is a part of an immune system and helps the body fight infections
- 17. a substance produced by a living organism
- 19. the substance on which an enzyme acts
Down
- 1. the ability of living systems to maintain a relatively constant interval enviorment
- 2. the virus that causes acquired immunodeficiency syndrome
- 5. carries amino acids to the ribosome
- 6. a subcellular that has one or more specific jobs to perform in a cell
- 8. protects and organizes the cells
- 9. organisms who's cells lack a nucleus
- 11. a cell division that results in two daughter cells
- 13. a mature haploid male or a female germ cell
- 14. a type of cell division that results in four daughter cells
- 18. a molecule that contains a genetic code that is unique for every individual
- 20. a molecule that is present in the majority of living organisms and viruses