Elias conducted an experiment about the effects of exercise on the heart rate of teenagers. before morning basketball practice, he asked the members of his high school team to be his subjects. he measured each of their heart rates before and after a set of exercises. which change would most reduce the bias of his experimental design?
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Variety of living organisms; includes genetic, species, and ecological types.
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Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.
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Emmet didn’t want to weed the garden. he put off the task toward the end of the day. he even tried to get his sister to do the job. what type of goal orientation did emmet display toward weeding the garden?
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When plants use sunlight to make food, the energy of sunlight is
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Elias conducted an experiment about the effects of exercise on the heart rate of teenagers. before m...
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