Which one of these protein structures shows the folding of the polypeptide which is held in place by interactions between R groups by H, ionic, and covalent bonds as well as strong disulfide linkages.

Why does the skin of your finger shrink when you wash clothes for a long time?

What occurs to the cell during mitosis

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point