Jeffrey wants to lose weight by using caffeine to
help with exercise. He asks himself, Which
...
Biology, 24.05.2021 19:50, brianrodriguez2005
Jeffrey wants to lose weight by using caffeine to
help with exercise. He asks himself, Which
caffeine drink will raise the heart rate the most?"
He tries to test this out by comparing the heart
rates of his neighbors, 3 brothers who are
triplets. One of the brothers drinks Pepsi,
another drinks a double shot of espresso (which
is coffee with twice the normal amount of
caffeine) and a third brother drinks only water for
comparison.
Jeffrey finds out that the triplet with the double
shot of espresso had the highest heart rate.
4. What is the independent variable for this experiment?
Answers: 3
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