Organisms and their Environment

4. organisms that cannot make their own food and eat plant and animal matter
11. the total amount of water on a planet
13. a key term in the study of organisms in their habitats
17. heat and pressure turns organic material into this after millions of years
19. layers of gases surrounding a planet
21. each feeding level of a food chain
24. organisms that consume other organisms to obtain energy
25. shows 'who eats what' in a habitat
26. organisms that feed on decaying, non-living organic matter using external digestion
27. organisms that get their energy from eating both plant and animal matter
28. organisms that digest or decay dead plant or animal material
30. a living component of an ecosystem

1. organisms that eat meat
2. the only planet known to have life on it
3. the permanent destruction of large areas of forests and woodlands
5. the external surroundings including all of the biotic and abiotic factors that surrounds and affects the survival and development of an organism or population
6. the mass of living material
7. all different species of organisms that form the food web
8. the study of animals in their habitats
9. a group of organisms of the same species that live in the same environment at the same time
10. graphical representation showing biomass or bio productivity at each trophic in an ecosystem
12. food chains linked together
14. burning fossil fuels into the air as carbon dioxide
15. organisms that can make their own food
16. the non-living part of an ecosystem that shapes its environment
18. organisms that consume plant matter
20. a community of organisms and their environment in an area that interacts together
22. a group of organisms that share many features and can produce fertile offspring
23. an individual animal, plant, or. single-celled life form
29. organisms that have the ability to make their own food