Science vocabulary.

2. a non-living part of an ecosystem that shapes its environment.
4. a chemical compound composed of one carbon and two oxygen atoms.
5. a living organism that shapes its environment.
10. a biological community of interacting organisms and their physical environment.
11. any kind of green plant.

1. organism that breaks down dead organic material.
3. a system of interlocking and interdependent food chains.
6. the material structure of an individual life form.
7. the stuff we breath.
8. any organism that can't make its own food.
9. physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
12. the strength and vitality required for sustained physical or mental activity.