Biology Keeping Healthy 0.0 / 5 ? BiologyKeeping HealthyGCSEAQA Created by: MaddiCreated on: 31-08-13 14:22 24971053186 Across 1. Giving a vaccine that allows immunity to develop without exposure to the disease itself. (12) 5. The unique protein on the surface of a cell. It is recognised by the immune system as ‘self’ or ‘non self’. (7) 6. When more causes of an infectious disease are recorded than would normally be expected. (8) 7. Capable of causing infection. (10) 9. The nutrient jelly on which many microorganisms are cultured. (4) 10. When more causes of a disease are recorded than normal in a number of different countries. (8) Down 2. Introducing small quantities of dead or inactive pathogens into the body to stimulate the white blood cells to produce antibodies that destroy the pathogens. This makes the person immune to future infection. (11) 3. Single-celled microorganisms that can reproduce very rapidly. Many are useful. (8) 4. Disease which can be passed from one individual to another. (10, 8) 8. Very overweight, with a BMI of over 20. (5)
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