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14 Cards in this Set
- Front
- Back
Biosphere
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part of earth that supports life, including the top portion of the earth’s crust, the atmosphere, and all water on earths surface.
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ecosystem
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all living organisms that live in the area and the nonliving features of their environment.
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population
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all the organisms that belong to the same species living in a community.
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community
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all the populations of different species that live in an ecosystem.
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habitat
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place where an organism lives and that provides the types of food, shelter, moisture and temperature needed for survival.
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limiting factor
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anything that can restrict the size of a population including living and nonliving features of an ecosystem, such as predators or drought.
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carrying capacity
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largest number of individuals of a particular species that an ecosystem can support over time.
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producers
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organism, such as a green plant or alga, that uses an outside source of energy like the Sun to create energy-rich food molecules.
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consumers
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organism that cannot create energy-rich molecules but obtains its food by eating other organisms.
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symbiosis
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any close relationship between species, including mutualism, commensalism, and parasitism.
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mutualism
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a type of symbiotic relationship in which both organisms benefit.
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commensalism
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a type of symbiotic relationship in which one organism benefits and the other organism is not affected.
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parasitism
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a type of symbiotic relationship in which one organism benefits and the other organism is harmed.
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niche
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in an ecosystem, refers to the unique ways an organism survives, obtains food and shelter, and avoids danger.
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