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Definition
| an organism which makes its own food |
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| (a producer) an organism which captures energy from sunlight or chemicals using photosynthesis or chemosynthesis, respectively |
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| autotrophs which captures energy from chemicals to obtain energy |
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Term
| 1st level of organization: species |
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Definition
| similar organisms which can reproduce |
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| 2nd level of organization: population |
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| a group of organisms of one type living in an area |
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| 3rd level of organization: community |
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| populations that live together in a defined area |
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| 4th level of organization: ecosystem |
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| communities and their nonliving surroundings |
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| 5th level of organization: biome |
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| group of ecosystems with the same climate |
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| 6th level of organization: biosphere |
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| the part of the Earth that contains all ecosystems |
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| any relationship in which two species live closely together |
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| a symbiotic relationship in which both species benefit |
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| a symbiotic relationship in which one organism benefits and the other is neither helped nor harmed |
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| a symbiotic relationship in which an organism lives on or in another and harms it |
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| one species evolves to resemble another |
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| Describe the flow of energy through a food web. |
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Definition
- light or chemical energy is gained by producers
- 10% of that energy flows to the primary consumers
- 10% of the energy of the primary consumers, or 1% of the energy of the producers, flows to the secondary consumers
- 10% of the energy of the secondary consumers, or 1% of the energy of the primary consumers, or .1% of the energy of the producers,flows to the higher -order consumers
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| all living factors which influence organisms within an ecosystem |
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| physical or non-living factors that shape the ecosystem, such as soil or climate |
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| amt of births per given amt of time |
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| amt of deaths per given amt of time |
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| the maximum number of individuals a population can support due to limited resources |
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