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A scientist is testing the effects of exercise on students' heart rates. She asks a student to run in place for 1 minute and another student to stand still for one minute. She then measures and records their heart rate in beats per minute ONLY ONCE. The scientist decided one trial was enough for her study. Is this a well-designed experiment and why?

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20069177 20069177

05-01-2022
Biology

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PLZ HELP
A scientist is testing the effects of exercise on students' heart rates. She asks a student to run in place for 1 minute and another student to stand still for one minute. She then measures and records their heart rate in beats per minute ONLY ONCE. The scientist decided one trial was enough for her study. Is this a well-designed experiment and why?

Sagot :

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