| A | B |
|---|
| Predator | an animal that captures and eats other animals |
| Prey | an organism that is killed or eaten by a predator |
| organism | an individual life form |
| environment | all the biological, chemical, and physical conditions that act on an ecological community |
| ecology | the study of the interactions among living things and the environment |
| biosphere | the portion of the planet that contains life |
| ecosystems | a community of interdependent organisms and their environment |
| abiotic factors | a nonliving part of the environment |
| biotic factors | a living part of the environment |
| species | a basic unit of biological classification |
| population | organisms of the same species that share a habitat |
| community | a group of different species living and interacting with one another in an area |
| Organisms | an individual life form |
| habitat | the area where an organism lives |
| niche | the combination of behaviors and resources that an organism is adapted to exploit |
| competition | when two or more organisms rival for the same resource |
| substrates | a base upon which an organism lives |
| Biodiversity | the number and variety of different species in an given area |
| carrying capacity | the largest population that an ecosystem can support over time |
| Limiting factors | an abiotic factor that restricts the growth of a population |
