I believe that the anwser wouldn be number 3
Answer: D. Adaptations help organisms survive and reproduce in a particular environment.
Explanation:
An adaptation can be define as the changes that occur in the behavior, structure and physiology of the organism so that organism become suited to survive and reproduce in the adverse environment. Adaptation results due to evolution of the living organisms through the process of natural selection as a result of interaction of the organism with the changing or unsuitable environment.
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.
SWEET!!! is the least sensitive of the following two choices.
its a cell because blood is made from red blood cells
