Ch 5- How Ecosystems work- pg. 142 Brittney compton
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Photosynthesis | Energy from the sun to the ecosystem transfered to the plant for food.
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| producer | An organisim that makes its own food.
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| Consumers | Organisims that get their energy by eating other organisims.
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| Decomposers | organisims that break down dead rotting organisims.
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| cellular respiratoin | The process of breaking down food to yeld energy which occurs in inside the cells of most organisims.
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| Food chain | Is a sequence in which energy is transferd from one organisim to the next.
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| Food web | Shows many feeding relationships that are posible in an ecosystem.
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| Trophic level | Each step through which energy is transfered in a food chain.
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| Carbon cycle | Is a process by which carbon is cycled between the atmosphere, land, water, and organisims.
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| Nitrogin-fixing Bacteria | the only bacteria that can fix atmoshpheric nitrognen compond.
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| Nitrogin Cycle | a process in which nitrogen is cycled between the atmosphere,bacteria, and other organisims.
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| Phosphorus Cycle | is the movement of phrosphorus from the enviroment to the organisims and then back to enviroment.
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| Ecological succession | is a gradual process of change and repacement of some or all of the species in a community.
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| primary succession | is the type of succession that occurs on a surface where no ecosystem existed before.
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| Seccondary succession | the more common type of succession,occurs on a surface where a ecosystem has previously exsisted.
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| Pioneer species | the first organisims to colonize any newly avaliable area and begin the process of ecological succession.
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| Climax communitity | is a final and stable community
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