Biology Crossword

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Across
  1. 2. Microorganisms that cause disease
  2. 4. Hormone involved in the control of blood sugar levels
  3. 5. A medicine that does not contain the active drug being tested, used in clinical trials of new medicines
  4. 6. Single-celled prokaryotic organisms
  5. 9. Dead or inactive pathogenic material used in vaccination to develop immunity to a disease in a healthy person
  6. 10. Substances found on the surface of cells, including bacteria and other pathogens.
  7. 11. A mass of abnormally growing cells that forms when the cells do not respond to the normal mechanisms that control growth and when control of the cell cycle is lost
  8. 12. To be protected against certain infection or toxin
Down
  1. 1. Pathogens that are much smaller than bacteria and can only reproduce inside the living cells of other organisms
  2. 3. Proteins produced by a type of white blood called lymphocytes
  3. 7. Agents that cause cancer or significantly increase the risk of developing cancer
  4. 8. A complete state of physical and mental wellbeing