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Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.
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Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?
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Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d
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Ashows that species may have more than one source of food....
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