How does a proper warm up affect blood flow?
o a.
blood flow increases.
b. blood flow decreases.
oc. blood flow increases and then decreases.
od. blood flow decreases and then increases.

Trending data is needed when evaluating fitness levels in order to a. compare against others b. chart overall progress c. correct inaccurate data d. keep a person motivated

Practice or pre-exercise theories of play pose the idea that a. play provides children with an opportunity to practice adult activities. b. play is necessary to reenergize human cognition. c. children have too much energy and play will rid them of that energy. d. children are the link between animals and human beings.

In which book word demography is used for first time