Reversibility refers to the sport training principle that states whatever changes that happen after your sports training will reverse when you stop training. Fitness will be loss under such circumstances, like in the example given.
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<span>C. People must actively register to be organ donors Usually you have to fill out the health survey and sign stuff and then you get a little symbol to be an organ donor on your ID. this shows the people when you die that you signed up to donate. :)</span>