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Definition
| the number of organisms that can be supported by the resources in an ecosystem |
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Definition
| the components of the environment that restrict the growth of populations |
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Definition
| a graph that shows the growth and decline in population over time |
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| collection of interacting populations |
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Definition
| a group of organisms of the same species living in a certain area that can interbreed |
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Definition
| when a population that is new to an area grows in numbers |
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Definition
| when a population size remains about the same over a long period of time |
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Definition
| when a population size decreases in number |
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Definition
| when a population increases more and more every year (humans) |
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Definition
| all the living organisms that inhabit the environment, including predators, food sources, and competitors |
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Definition
| the nonliving elements in an ecosystem, such as temperature, moisture, air, salinity, and pH |
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Definition
| consists of all the interacting species and the abiotic environment in a given geographic area |
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Definition
| a close and permanent relationship between organisms of two different species |
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Definition
| a relationship between two species in which both benefit |
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Definition
| relationship between two species in which one benefits and the other is not affected |
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Definition
| relationship between two species in which one benefits and the other is harmed (but not killed) |
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Definition
| an organism that harbors a parasite, virus, mutual partner, or commensal partner |
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Term
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Definition
| circulation of carbon, oxygen, nitrogen, and phosphorus through the environment |
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Term
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Definition
| position in the food chain |
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Term
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Definition
| simple transfer of energy from producer to herbivore to carnivore |
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Definition
| complex interlocking pattern of food chains |
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Definition
| depicts how stored energy decreases in higher trophic levels |
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Term
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Definition
| depicts howcombined mass of organisms decreases in higher trophic levels |
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Definition
| depicts how population size decreases in higher trophic levels |
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Definition
| a series of changes in a community in which new populations of organisms gradually replace existing ones especially after a disaster |
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Definition
| occurs when succession slows down and a stable community is established; made up of the fittest species |
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Definition
| a forest of trees that lose their leaves in winter; the climax community of Virginia |
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Term
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Definition
| an illustrated book to help you identify different species you find outside |
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Definition
| when two or more organisms need to the other(s) to survive or reproduce |
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Definition
| organism that makes its own food |
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Definition
| organism that eats other organisms for energy |
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Definition
| organism that breaks down matter for energy |
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