| A | B |
|---|
| diversity | a variety of organisms |
| succession | predictable replacement of populations in an ecosystem |
| consumer | animals that eat other animals as food |
| producer | organisms that can make their own food (like plants) |
| autotroph | another name for a plant or producer |
| heterotroph | another name for an animal or consumer |
| carnivore | organisms that eat meat (lions, tigers) |
| herbivore | organisms that eat plants only (sheep, cows) |
| omnivore | organsims that eat both plants and animals (humans) |
| decomposer | organism that gets nutrients from dead plants/animals |
| scavenger | organism that gets nutrients from dead animals (vulture) |
| niche | role of an organism in an ecosystem |
| predator | captures, kills and consumes another organism |
| prey | the organism eaten by the predator |
| mutualism | both organisms benefit from their association |
| commensalism | one organism benefits, the other is not affected |
| parasitism | one organism benefits, the other is harmed |
| ecosystem | all of the organisms and the non-living environment found in a place |
| pyramid of biomass | organic material in an ecosystem |
| pyramid of energy | amount of energy that can be transferred to the next level |
| competition | two or more organisms want (and fight for) the same resource (like water) |
