[Q]: Which is the best evidence that cell division is occurring constantly in our bodies?
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[A]: Human beings shed millions of


[Q]: A powder made up of both white specks and black specks is likely to be
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[A]: a mixture


[Q]: A group of students plans to build a model of a local pond habitat. Which model best represents an environment similar to a pond?
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[A]:
a small plastic outdoor pool containing freshwater, native plants, and native animals