Across
- 1. Sticky substance made by cells lining the tubes from the mouth
- 3. of the body
- 5. Tiny, hair-like structures that extend from the surface of some
- 7. the body
- 10. cell A cell with tiny threads called cilia along its edge which can
- 14. The smallest type of blood vessel, which delivers blood close
- 16. to absorb water
- 17. in a wave-like motion
- 18. the lungs. Mucus traps dust and bacteria
- 20. A red pigment inside red blood cells, which carries oxygen
- 21. happens
Down
- 2. Built to its job really well
- 4. every cell in the body
- 6. The job that something does or the role it plays
- 8. blood cell A very small cell with no nucleus that delivers oxygen to every
- 9. long strand of cytoplasm along which electrical signals
- 11. cell A cell found inside the leaf of a plant; this is where most
- 12. A coloured substance; chlorophyll and haemoglobin are
- 13. signals from the other neurones
- 15. A short strand of cytoplasm on a neurone which collects
- 19. hair cell A cell that is found on the outside of plant roots, and is