Resveratrol, a compound found in red grapes, is a potent antioxidant. Scientists reported in 2008 that mice genetically engineered to age (i. e. grow old) unusually quickly who were fed 0.2% resveratrol for 12 weeks had greater endurance than the same strain of mice who were not fed resveratrol. What can you conclude from these data

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.

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.  

artificial selection

explanation:

this occur when man select base on their intelligent