Across
- 3. Acquired immunity obtained through artificial means via a weakend form of the pathogen.
- 4. An organism that carries a disease without being affected by it.
- 5. Reproductive structure in breadmould.
- 8. The bacterium type which is spherical in shape.
- 11. Whip-like structures which are used for movement in bacteria.
- 16. Threadlike structures that anchor lower plants and fungi to a surface.
- 18. A relationship between two organisms which live together for the benefit of one or both organisms.
- 19. Virus which infects bacteria.
- 20. The variety of organisms found in an area or on Earth.
- 21. The vegetative part of a fungus.
Down
- 1. An organism that harbours a parasite.
- 2. Organisms which can synthesis their own food.
- 3. Organisms that cause disease.
- 6. The symbiotic association of fungi with the roots of trees.
- 7. Symbiotic relationship between humans and E.coli bacteria living in the gut.
- 9. The micro-organism used in the manufacturing of beer and bread.
- 10. The structure with a nucleic acid core and a protein coat.
- 12. Chemical substances used to kill bacteria
- 13. Substances used to stimulate the production of antibodies and provide immunity against one or several diseases.
- 14. The Parasitic protozoan that causes malaria.
- 15. The ability to produce antibodies to fight diseases.
- 17. Mass of fungal threads.
- 19. Unicellular organisms than can exist in coccus, spirillium or bacillus form.