A surgeon suspects that the supernatural ability of a dowser to locate a hot coal buried in the ground is best explained by the presence of particularly sensitive thermoreceptors in their hands. Lesioning which area of the brain would best allow the surgeon to test her hypothesis?
A. Lateral geniculate nucleus
B. Hippocampus
C. Frontal lobe
D. Parietal lobe

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.