Organisms and their Environment

2. levels, each feeding level of a food chain
3. organisms that feed on decaying, non-living organic matter using external digestion
5. layers of gases surrounding a planet
9. organisms which get their energy from eating both plant and animal matter
10. the only planet known to have life on it.
11. the non-living part of an ecosystem that shapes its environment
13. organisms which consume plant matter
17. a living component of an ecosystem
19. web, food chains linked together to join a food web
22. organisms that cannot make their own food and eat plant and animal matter
24. organisms that digest or decay dead plant or animal material
25. organisms that have the ability to make their own food
26. the permanent destruction of large areas of forests and woodlands
28. a group of organisms of the same species that live in the same environment at the same time
29. the total amount of water on a planet

1. a community of organisms and their environment in an area that interacts together
4. organisms that consume other organisms to obtain energy
5. organisms that can make their own food
6. a key term in the study of organisms in their habitats
7. an individual animal, plant, or. single-celled life form
8. fuel, heat and pressure turns organic material into this after millions of years
12. organisms that eat meat
14. the external surroundings including all of the biotic and abiotic factors that surrounds and affects the survival and development of an organism or population
15. the mass of living material
16. burning fossil fuels into the air as carbon dioxide
18. the study of animals in their habitats
20. all different species of organisms that form the food web
21. pyramid, graphical representation showing biomass or bio productivity at each trophic in an ecosystem
23. a group of organisms that share many features and can produce fertile offspring
27. chain, shows 'who eats what' in a habitat