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| the study of the interactions that take place among organisms and their environment |
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| All the organisms in an ecosystem that belong to the same species |
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| All the populations in an ecosystem |
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| Provides shelter and resources so that animals can survive |
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| the role of an organism in ites ecosystem- how does it survive? |
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| makes its own energy through photosynthesis |
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| must consume other organisms to gain energy aka heterotroph |
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| any resource that limits how large a population can grow |
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| organisms attempt to use an ecologicial resource at the same place and the same time |
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| anything necessary to survive (food, water, shelter) |
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| interaction where a consumer captures and feeds on another consumer |
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| organism that is being killed and eaten (victim) |
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| any close relationship between two species |
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| both species benefit from the relationship (+/+) |
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| one member of the relationship benefits while the other is neither harmed nor helped. one sided (+/0) |
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| One organism lives on or inside another organism and harms it (+/-) |
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| organism that is harmed in a parasitic relationship; the one that provides nutrients to the parasite |
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| organism that gets nutrients from the host |
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| oxygen, food, water, living space, proper temperature |
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| to change in order to make "fit" or suitable to an environment |
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| any body structure or behavior that helps an organism survive |
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| physical characteristics that help an organism survive |
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| activities performed by an organism to help it survive |
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| an adaptation where an animal can hide by blending in with its surroundings |
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| an adaptation where one organism imitates another organism |
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| a pattern of behavior that requires no thinking |
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| an instinctive behavior in which some animals spend the winter in an inactive condition |
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| a behavior that an animal learns through experience |
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| over time, population change naturally. Beneficial traits become more common. Harmful traits become less common and eventually disappear |
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| HUmans select specific organisms to breed together, in order to get certain "desirable" traits. |
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