Ron's Crossword for science

2. Resistance to a disease causing organism or harmful substance
3. control centre of body
6. found on tongue
10. what Ms Asik Teaches us
11. lower half of the brainstem
12. carries out the response.
14. An Immune defence that prevents pathogens from causing harm
15. organism which does not display ALL the characteristics of living things.
16. use relay neurones to link the detector and the effector
17. known as the epidermis, forms a shield against invaders and secretes chemicals that kill potential invaders.
20. Foreign particles which cause harm to our body.
22. single-celled organisms, which do not completely have a nucleus
24. Formed by neutrophils that has been killed by bacteria around an infected wound.
25. Transmitted by sexual contact, blood transfusions, contaminated needles
26. bundles of neurones.

1. very small living things
4. part of brain which controls motor function
5. contains many chemicals that break down bacteria
7. use relay neurones to link the detector and the effector
8. a part of the body which contains taste buds
9. responsible for eating foreign particles by engulfing them
13. most complex structures of all the microbes. They feed off other living things.
18. Antigens are deliberately introduced into the immune system to produce immunity
19. occupies 80% of brain and contains over 10 billion neurones
21. carries an electrical impulse along its axon.
23. Discovered in 1983