Answer:
people were born different
Explanation:
Principle of Reversibility is the decline of skill and fitness level due to taking a break from exercise or being inactive.
It is called such because all the result of hardwork and labor done to achieve and maintain one's skill and fitness level will be reversed because said fitness regime is not maintained; making the body lax, eventually declining in skill performance and fitness level.
Your stomach just made a growling sound called borborygmus. That's because when the muscles in your digestive system move food, liquid, and gas through your stomach and small intestine, it produces a rumbling sound.