| A | B |
|---|
| carnivore | a consumer that eats only animals |
| energy pyramid | a model that shows how energy is used in a food chain or an ecosystem |
| pollutant | anything produced that harms the environment |
| producer | an organism that creates its own food through photosynthesis |
| respiration | an energy-producing process in which oxygen is combined with sugar to give off carbon dioxide |
| food web | a diagram that shows feeding relationships of organisms and the transfer of energy that takes place |
| community | a collection of plant and animal populations that live together in the same area and depend on each other |
| omnivore | a consumer that eats both producers and consumers |
| herbivore | a consumer that eats only plants or other producers |
| competition | a situation in which two or more organisms attempt to use the same resource |
| consumer | an organism that gets its food by eating other organisms |
| ecosystem | a community and its non-living environment |
| decomposer | an organism that obtains energy by consuming dead organisms and the wastes of living organisms |
| population | a group of plants or animals that belong to the same species |
| photosynthesis | a process in which light energy, carbon dioxide, and water are used to make sugar |
