Life Sciences

5. Microscopic fungus used in bread and beer production.
6. Gas used by plants for cellular respiration.
7. Part of earth and its atmosphere in which organisms live.
11. Medicine used to kill or stop growth of micro-organisms.
12. Acid that causes milk to go sour.
14. Main product of respiration used by animals and plants for all life processes.
18. A group of organisms that belong to same species in same area
19. Particular area where plants and animals interact with each other and the environment

1. Chemical used to test for carbon dioxide.
2. Bacteria and fungi that feed on decaying matter.
3. Change in the structure, function and behaviour of an organism which allow organisms to survive in a particular environment.
4. Main product of photosynthesis
8. Study of the interactions between living organisms and the non-living factors in the environment.
9. Animals and plants that feed on insects.
10. They are micro-organisms that are inactive outside the host.
13. Different populations living and interacting in the same area.
15. Infection of skin caused by fungi
16. Cause diseases like African sleeping sickness and malaria.
17. Useful organisms found in human intestines that help digest food.