Because at some point our organs get tired and weak from all the years of pumping and circulation etc. so at some point our bodies just can't do that forever...
By putting ur effort into ur work, being respectful and nice to ur class mates and teachers. u don’t have to have high marks, aslong as ur trying ur best and making it work, asking for help when u need it, then ur a good student
The building blocks of proteins<span> are </span>amino acids<span>, which are small organic molecules that consist of an alpha (central) carbon atom linked to an </span>amino<span> group, a carboxyl group, a hydrogen atom, and a variable component called a </span>side chain<span> (see below). ... The</span>side chains<span> of </span>amino acids<span> have different chemistries.</span>
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Often used on the go, hand sanitizers contain ethyl alcohol, isopropyl alcohol or both to kill bacteria and viruses on your hands. Alcohols have long been known to kill germs by denaturing the protective outer proteins of microbes and dissolving their membranes.
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