Biology B1

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Across
  1. 1. Proteins found on the surface of cells
  2. 3. Vision where both eyes focus on the same thing
  3. 7. White blood cells that produce antibodies
  4. 9. A clot within a blood vessel
  5. 11. Type of characteristic determined by genes
  6. 12. Hormone that regulates body glucose levels
  7. 13. The physical expression of a gene
  8. 16. A nerve cell
  9. 17. Organ that secretes hormones
  10. 18. Drug found in tobacco smoke
Down
  1. 1. Chemicals that kill or prevent the growth of bacteria
  2. 2. The pressure in the arteries when the heart contracts
  3. 4. Different version of a gene
  4. 5. Maintaining a constant environment in the body
  5. 6. The response of a plant to gravity
  6. 8. A disease caused by bacteria
  7. 10. Drugs that increase brain activity (e.g. Caffeine)
  8. 13. A parasitic microorganism that causes disease
  9. 14. Glands or muscles that carry out a response
  10. 15. Food made up of amino acids used for growth and repair