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Question
In a controlled experiment, ________.A) the researcher has several hypotheses, one of which will be proven correct
B) the researcher knows the outcome before she or he begins
C) the researcher controls for the effects of all variables except one
D) the experimental organisms have all been used before and have given good results
E) you need only a single experimental organism; replicates are not needed
Answer
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Related questions
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Urbanization drives TFR down.
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B) the idea that, without social strictures, the increase in the human population would lead to famine and war
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The most accurate terms describing the trend over the past 50 years in resource use for human energy and agricultural systems are ________.
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Q:
What is a downside of establishing urban growth boundaries (UGB)?