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