Term
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Definition
| the sum of all the living and nonliving things in an area and the interactions among them |
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Term
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Definition
| made up of all the organisms of a species that live in an area at the same time |
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Definition
| one in which the population sizes and available resources cycle regularly or change predictably and energy flows at a fairly constant rate |
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Definition
| the place where an organism lives |
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Definition
| a close, interdependent relationship between organisms of different species |
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Definition
| a symbiotic relationship in which both organisms benefit because each species closes something that helps the other species survive |
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Definition
| a symbiotic relationship in which one organism benefits and the other does not seem to benefit or be harmed |
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Term
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Definition
| a symbiotic relationship in which one organism benefits and the other organism is harmed |
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Definition
| an interaction between organisms in which one organism kills and eats another |
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Definition
| an interaction in which two or more organisms need include food, water, air, and living space |
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Definition
| a chemical substance that an animal produces to bring about a specific response in other animals of the same species |
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Definition
| an area that an animal claims and defends to ensure it has access to resources it needs |
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Definition
| the careful use and protection of resources |
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Definition
| the ability of a population or ecosystem to survive indefinitely |
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Definition
| one whose population is so small that it is in imminent danger of extinction |
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Definition
| improvement of the conditions in a damaged habitat in order to develop a self-substaining environment that resembles the habitat's state before it was disturbed |
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Term
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Definition
| an organism's environment are all nonliving components of its ecosystem. |
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Term
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Definition
| all living things in an environment |
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Term
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Definition
| made up of all the organisms of a species that live in an area at the same time |
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Term
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Definition
| the movement of organisms into an area |
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Definition
| the movement of organisms out or area |
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Definition
| anything in the environment that can limit the size of a population |
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Term
| density-dependent limiting factor |
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Definition
| a limiting factor that depends on the size of a population living in a certain amount of space |
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Definition
| a measure of the number of organisms per unit of area |
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Term
| density-independent limiting factor |
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Definition
| limit the growth of a population regardless of its density |
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Term
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Definition
| the largest population that an environment can support over a long period |
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