Term
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Definition
| the study of interactions among organisms and between organisms and their environment |
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Definition
| a group of individuals that belong to the same species and live in the same area |
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Term
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Definition
| groups of populations in an area |
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Definition
| a collection of all the organisms that live in a particular place and all of the nonliving components |
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Term
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Definition
| organisms that make their own food |
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Term
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Definition
| organisms that rely on other organisms for their food and energy |
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Term
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Definition
| each step in a food chain or a food web |
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Term
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Definition
| amount of living tissue within an organism or tropic level |
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Term
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Definition
| the process of converting nitrogen gas into ammonia |
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Term
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Definition
| the process of converting nitrogen gas into ammonia |
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Term
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Definition
| the process in which soil bacteria convert ammonia back to nitrogen gas |
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Term
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Definition
| a single nutrient that is limiting the growth of an ecosystem |
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Term
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Definition
| Lots of algae growth when aquatic ecosystems receive runoff from fertilized fields |
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Term
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Definition
| the day-to-day condition of the Earth's atmosphere at a particular time and place |
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Term
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Definition
| the average year-to-year conditions of temperature and precipitation in a particular region |
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Term
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Definition
| biological influences on an ecosystem |
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Term
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Definition
| physical or non-living factors that shape an ecosystem |
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Term
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Definition
| the area in which an organisms lives |
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Term
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Definition
| the full range of physical and biological conditions in which an organisms lives and the way in which the organisms uses those conditions |
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Term
| Competitive Exclusion Principle |
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Definition
| no 2 species can occupy the same niche in the same habitat at the same time |
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Term
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Definition
| any relationship in which two species live closely together |
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Term
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Definition
| the series of predictable changes that occur in the community over time |
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Term
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Definition
| the first species to populate the area |
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