A filter. you just filter it and it makes it new
The correct answer is: On Kingship.
The original title was "De regno" and it was addressed to the King of Cyprus (who also held the tile of King of Jerusalem at the time).
In contrast, Nichomachean Ethics and Politics is attributed to Aristotle and Das Kapital was written by Karl Marx.
Polar r groups of closely positioned amino acids often enter into Hydrogen bond with each other, which helps give a protein its three-dimensional shape.
<h3>What is Hydrogen bond?</h3>
The term Hydrogen bonds refer to a the type of bond formed when Hydrogen is attracted to negative atom or element. It is a dipole-dipole bond that is generally weak when compared with some strong covalent bonds but it is stronger than the weaker van der waal forces.
For polar r groups, we can conclude by saying that Polar r groups of closely positioned amino acids often enter into Hydrogen bond with each other, which helps give a protein its three-dimensional shape.
Read more on Hydrogen bonds here: brainly.com/question/1420470
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