Hernias are one of the many examples of a disease that show how humans are products of a lengthy and convoluted evolutionary history. Briefly explain how this ancient ancestral’ trait still "haunts" us:

Explanation:

Hernias are cuts in the muscles that makes the body bulge out. It can occur in the stomach region where intestine lies leading to its bulging out. Hernias has been traced back to early years and until recent it still exist.

Hernia are mostly common in man with little traces in woman. Some hernia are due to some congenital defect and could be found in new born. It is characterized by heart burn,cough, pressure on the affected part.

Hernia are said to be genetic, and this has lead to the continuity in human nature and not its reduction. Hernia have claim some life's especially the severe ones if not properly treated, some people have died in the theater room while be operate upon while some people are in sever pain of the disease. Hernia as at 2015 is present in 18.5million people and has caused death of about 59,800.

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.