What are the sources of demographic data? describe any of them.

Ibelieve the answer is microorganisms within the body develop mutations, so d.hope i you out : )

Cardiorespiratory fitness is vital to lifetime fitness as it has the ability to deliver proper nutrients like oxygen to the different organs of the body and it also removing waste products every prolong physical exercise. a happy heart also does reduces the risk of many diseases which is the answer.

  by preparing for emergencies-  by monitoring employee behavior- by offering resources to nearby citizenshope this : )  (i'm not 100% sure if these are right, i just want to you out)