| A | B |
|---|
| Ecology | the study of interactions of organisms with their environment |
| Abiotic factor | nonliving parts of an environment |
| Biotic factor | living parts of an environment |
| Individual | one organism |
| Population | individuals of the same species that live in the same area |
| Species | a group of individuals that can mate to produce fertile offspring |
| Community | made up of the populations of organisms that live in an area and interact |
| Ecosystem | made up of a community of organisms and their abiotic environment |
| Habitat | the place where an organism lives |
| Niche | the role of a species in its community |
| Producers | use light energy to make food |
| Decomposers | get energy by breaking down the remains of plants and animals |
| Consumers | get energy by eating other organisms |
| Herbivore | only eats plants |
| Carnivore | eat only other organisms |
| Omnivore | eat plants and animals |
| Food chain | path of energy transfer from producer to consumers |
| Food web | many food chains put together |
| Predator | kill and eat prey animals |
| Prey | organisms that are eaten by other organisms |
| Mutalism | both species benefit from a relationship |
| Commensalism | one species benefits |
| Parasitism | one species benefits |
| Photosynthesis | process in which plants and other organisms use light energy |
| Cellular respiration | process in which cells use oxygen to break down food and release stored energy |
