Biology Crossword

2. An organism that is consumed
4. The process by which green plants and other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
5. To become rotten/decayed
6. Denitrification → Loss in drainage water → Absorption and protein synthesis → Nitrogen fixation → Nitrification → Decomposition
9. The process of reducing nitrate and nitrite to gaseous forms of nitrogen
10. An organism that makes its own organic food substances
15. A place where an organism lives
16. A class of things of the same kind and with the same name
17. A network of interconnected food chains
19. The process by which ammonium compounds are converted to nitrates
20. A process in living organisms involving the production of energy

1. Photosynthesis → Feeding → Respiration → Decomposition → Formation of fossil fuels and combustion
3. Free-living soil bacteria
7. A graphical representation showing the relationship between different organisms in an ecosystem
8. A group of organisms of the same species that live together
11. Fourth in rank
12. Made up of all the populations of different species living and interacting with one another
13. An organism that consumes another organism
14. The study of organisms and how they interact with the environment around them
18. A community of organisms interacting with one another and with their environment