| A | B |
|---|
| biotic | having to do with living things |
| abiotic | having to do with nonliving things |
| food chain | way of showing food relationships among organisms...who eats who or what. Also shows the energy flow between organisms |
| food web | shows a series of interrelated food chains and illustrating the complex nutritional interrelationships that exist in an ecosystem |
| producer | an organism that makes its own food (green plants) They are at the base of the foood web also called <b>autotrophs</b> |
| consumer | an organism that obtains food by eating other organisms, also called <b>hetrotrophs</b> |
| decomposers | organisms that break down the remains or wastes of other organisms, bacteria and fungi are examples also called <b>saprophytes</b> |
| law of the conservation of matter | states that matter can neither be created nor destroyed. important when it comes to natures cycles |
