<span>The answer is letter B. <span>
<span>Motor
neurons tend to function less as age sets-in in a particular individual.
Reaction time is the ability to respond quickly to stimulus presented in a
given situation. An example of this is the gun start that is commonly used in
athletic competitions where a person reacts quickly to the signal and performs
the activity. As we age, our
sensory systems deteriorate and as a result some of the skills we have when we were
younger are not as effective as it was when we turned into mature adults. </span></span></span>
Answer: drug
Explanation:
The substance that is being taken into the body or applied to the body in order to alter the biochemical functions of the body and its physiological processes is referred to as drug.
A drug is a chemical substance which is administered in order to have a biological effect on ones body. It can be utilized for either health-related purposes or for recreation.
The answer to this is Isometric because these exercises are done in a static position.