If a scientist is trying to determine the speed at which an animal can travel by studying the organism's body. Which combination of systems should the scientist analyze to estimate the speed at which the organism moves?

answer; //the above statement is (false);

i got something better   a catchphrase here it is

ahem  

ahem

what the squwock

explanation:

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.