<span>Evolution is the concept that occurs when an organism learns to adapt to its surroundings and react to various triggers in more effective ways. By being exposed to that stimulus numerous times, evolution causes the organism to adopt more practical ways of dealing with it.</span>
Red blood cells do not pop in the bloodstream because of the osmosis, a specialized case of diffusion . Osmosis is the movement of <span>water through a selectively permeable membrane from a region of its higher concentration to a region of its lower concentration.</span>
There is a change in amino acids sequence causes these mutations, If there is an error in the order of amino acids during the process of multiplication, there is a special enzyme to repair errors
Genetic variety i believe.