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A long-term relationship between two species that usually involves an exchange of food or energy is A. predation. B. symbiosis. C. niche. D. competition.
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User: A long-term relationship between two species that usually involves an exchange of food or energy is A. predation. B. symbiosis. C. niche. D. competition.

Weegy: b. mutualism, commensalism, and parasitism- are the three types of symbiosis.
yumdrea|Points 4850|

User: Which of the following does not contribute to eutrophication? A. Decaying organisms B. Fertilizer C. Pollution D. Sediment

Weegy: A. Pollution does not contribute to eutrophication.
jeifunk|Points 15414|

User: Which biome contains permafrost? A. Temperate deciduous forest B. Tundra C. Taiga D. Temperate rain forest

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Asked 228 days ago|2/15/2014 5:00:41 AM
Updated 228 days ago|2/15/2014 5:31:45 AM
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B. TUNDRA forest contains permafrost.
Added 228 days ago|2/15/2014 5:31:09 AM
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A long-term relationship between two species that usually involves an exchange of food or energy is MUTUALISM.
Added 228 days ago|2/15/2014 5:31:44 AM
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Which of these is a successful time management strategy? A. Plan for more activities than you can possibly do. B. Allow enough time to complete the activities you've planned. C. Make a schedule and stick to it whatever happens. D. Allow the same amount of time for every activity.
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Updated 230 days ago|2/13/2014 5:55:25 AM
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A successful time management strategy is:
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Which one of the following SI base units is not matched to the correct unit of measurement? A. Length: km B. Temperature: K C. Mass: kg D. Time: s
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Updated 230 days ago|2/14/2014 2:02:00 AM
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A. Length: km is not matched to the correct unit of measurement.
Added 230 days ago|2/14/2014 2:02:00 AM
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Which one of the following SI base units is not matched to the correct unit of measurement? A. Length: km B. Temperature: K C. Mass: kg D. Time: s
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Updated 230 days ago|2/14/2014 2:19:41 AM
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A. Length: km is not matched to the correct unit of measurement.
Added 230 days ago|2/14/2014 2:19:41 AM
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Frost on the grass in autumn is an example of A. deposition. B. sublimation. C. condensation. D. vaporization.
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Updated 229 days ago|2/14/2014 4:02:38 AM
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Frost on the grass in autumn is an example of A. deposition.
Added 229 days ago|2/14/2014 4:02:38 AM
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