Reaction time is the lapse of time between muscular movement and external stimuli. true or false

True. Reaction time refers to the description above. It is a skill related fitness component that is very important during the start of competitions (e.g. gun start). It refers to how fast the stimulus gets to the brain and how it directly sends signals to power the reactions of the muscles making the body move and perform work. 

for question 8

1: it gets the blood pumping more

2: endorphins and other neurotransmitters

absolute strength refers to the maximum force exerted by a body irrespective of body size. relative strength on the other hand is the force exerted by a body in relation to muscle size or body weight.

so the answer is: c. absolute strength measures strength regardless of your body size, while relative strength measures strength adjusted for your weight.