In experimental research, it is important to provide precise definitions of both dependent and independent variables. With – definitions, the variables are described – , to make clear exactly what manipulations and – the experiment involves. This is important for later – of the results by other researchers.

it will increase due to the time span

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.