| A | B |
|---|
| environment | everything surrounding a living organism |
| population | all the living things of one kind in one place |
| interdependence | dependence between two or more organisms, groups, or things |
| ecosystem | all the different plants, animals, and nonliving things in one place that use each other |
| organism | a form of life considered to be a living thing |
| survival | to get along or remain unaffected in spite of some hardship or lack of resource |
| food chain | shows how matter and energy flow through an ecosystem |
| food web | a system of overlapping food chains; energy moves in many different directions |
| significance | importance |
| oxygen | a gaseous element given off by producers. |
| photosynthesis | process that changes carbon-dioxide, water and Sun's energy into glucose |
| producer | an organism that make its own food |
| consumer | an organism that eats other living things |
| omnivore | consumer that get energy from eating plants and animals |
| decomposer | organism that eats the waste and remains of dead plants and animals (FBI) |
| niche | the special role or job of an organism in its habitat |
| competition | to strive to outdo another; compete for food |
