biology project

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