Proteins also have structural or mechanical functions, such as actin and myosin in muscle and the proteins in the cytoskeleton<span>, which form a system of scaffolding that maintains cell shape. Other proteins are important in cell signaling, immune responses, </span>cell adhesion<span>, and the cell cycle. hope that helped</span>
<h2><em>EXPLANATION</em><em>:</em><em>-</em></h2><h3><em>Since there was already an anti resistant microorganisms that actuallly have been able to survive through the antibiotics, natural selection states that if one survives and is well adapted to a certain environment, then offspring from that survivor will be created and beneficial traits for the offspring will be received having them a chance for survival. So, the microorganisms spread and spread offspring with that anti resistance in which is the Survival of the Fittest. Until there are no microorganisms that aren’t resistant the lastahas strep throat then returns.</em></h3>
