Answer:
The Use or Lose Principle
The Principle of Use or Lose implies that when it comes to fitness, you "use it or lose it." This simply means that your muscles build strength (hypertrophy) with use and lose strength (atrophy) with lack of use. This also explains why we or lose fitness when we stop exercising.
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Answer:
I believe it's D as well.
Explanation:
Nothing else seems to pop out at me as "perpetuate common sexual stereotypes"
The answer to this question is mass
Answer:
he is using more energy to get up the hill
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