To ensure scientific results are valid, what should you do during an experiment?
A. Conduct multiple trials.
B. Change hypothesis to fit result.
C. Have more then one independent variable.
D. Ignore results.
Select your answer:
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What is a concussion?
A. All of these
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D. A traumatic brain injury; occasionally life-threatening
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A. large particles
B. stay in the vasculature
C. help with vascular volume
D. all of the above