the answer is B which is a crack in the topmost section of a glacier. I hope you got this right
A long reflexive pathway has an advantage over a short reflexive pathway in the fact that they can be also be stimulated by the central nervous system, whereas the short reflexive pathway is only stimulated by the enteric nervous system.
B, because they can only see shapes.
Several factors affect the rate at which enzymatic reactions proceed - temperature,pH<span>, enzyme </span>concentration<span>, </span>substrate concentration<span>, and the presence of any inhibitors or activators.</span>
