1. If leaf color change is related to temperature, then exposing plants to low temperatures will result in changes in leaf color.
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2. If you poke a skunk, it will always result in the emission of noxious and toxic fumes.
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3. A comprehension test was given to students after they had studied textbook material either in silence or with the television turned on.
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4. If animal metabolism is related to temperature, then increasing resting room temperature will increase animal metabolism.
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