Chapter 2 Study Guide
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19 terms
Terms | Definitions |
|---|---|
 4 Nonliving Things | rocks, sun, wind, water |
| 4 Living Things | plants, birds, worms, humans |
| popular density | number of individuals of one species per a specific area |
| community | all the populations of all species living in an ecosystem |
| population | made up of all organisms of the same species |
| ecosystem | consists of all the organisms living in area as well as nonliving parts of that environment |
| habitat | place in which an organism lives |
| food chain | the feeding relationship between species |
| biosphere | part of earth that supports life |
| limiting factor | anything that restricts the number of idiviuals in a population |
| niche | its role in its environment |
| producers | organism that use an outside energy source like the sun to make energy-rich molecules |
| ecology | the study of interactions that occur among organisms and their environment |
| carrying capacity | the largest number of individuals of one species that an ecosystem can support over time |
| symbiosis | any close relationship between species |
| consumer | organism that connot make their own enrgy rich molecules |
| mutualism | both orgnisms benefits |
| commensalism | one organism is benefits and the other is not affected |
| parasitism | one benefits and one is harmed |
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