The purpose of this is to indicate the changes or effects in pulse rate bought by exercise.
We can also call this the control set up, it is where all the setting is same except without the variable that is going to be tested. So in this case, that variable is exercise.
So it is supposed that both set up has same settings such as the amount of time measuring the pulse, or the position of arm or neck etc.
I think it would be 25% likely hood
Hey!
It is called Oncology.
I hope I helped you. I will be really happy, If you mark my answer as the brainliest. Your David.
the respiration in human start from breathing.the oxygen is inhale and passes through larynx and reaches upto trachea and it goes in the bronchus.it is also divided into bronchoioles. it leads into lung
the bronchoioles that enter in the lung lead to small air sac called alveoli and it exchange gases and here exchange of gas occur and carbon dioxide is transported back to nostril through same passage and the canbondioxie is exhaled.in this way the process of respiration is completed
hope this helped..