Tom and jesse decided to perform an experiment to see what exercise does to blood pressure. they decided to test their friend john. below is their procedure.1. take test subject's resting blood pressure.2. have test subject do either sit ups, push ups, or sprint for one minute.3. take test subject's blood pressure. tom and jesse run the same tests on john every day for one week. running the same test, for one week, is an example ofa) validity. b) a control. c) repetition. d) replication.

The correct answer is option C, that is, repetition.  

Repetition takes place when various sets of measurements are performed at the time of one scientific investigation. While replication takes place when a scientific investigation is reproduced by another individual. Repetition refers to multiple trials, while replication is when one redo the whole experiment. In repetition, the experiment is repeated at least three times.  

hope this !

the answer is: reproductively

i think i spelled it wrong lol

anyways hope i

-lavira: )