Organisms and their environment

2. pyramid, a graphical representation showing the feeding relationships of groups of organisms
5. web, a system of interlocking and interdependent food chains
7. a group of people living in the same place/ have common characteristics
9. any organisms that absorbs soluble organisms nutrition
11. a group of organisms consisting of similar individuals capable of interbreeding
14. organisms that break down decaying organisms and waste.
16. relating/ resulting from living organisms
23. all the inhabitants in a particular place
24. the total amount of water on a planet
26. any organism that only eats plants
27. an organism that derives its nutrition requirement from complex organic substances
28. organisms that obtain food from feeding on other organisms
29. the planet on which we live

1. to clear forest and trees
3. an individual animal/ plant/single celled life form
4. a biological community of interacting organisms and their environment
6. an organism capable of of synthesising its own food from inorganic substances
8. levels, the position that an organism occupies in a food chain
10. a chemical process in which substance reacts rapidly with oxygen and gives off heat
12. the surrounding in which an organism lives
13. chain, a series of organism each depend on the next as a source of food
15. the science that studies living things, the environment and their interactions
17. organisms that make their own food
18. the mass of living organisms in a given area/ ecosystem at a given time
19. the gas surrounding a planetary body held in place by gravity
20. a kind of animal that eats either plants/ animals
21. the regions of the surface and atmosphere of the earth occupied by living things
22. any organism that eats a diet consisting mainly of meat
25. physical rather than biological; not derived from living organism