Can someone explain this to me? i don't get it

Well the second one does not support because of the fact that even if they did have these same things, evolution is the process of changing from one thing to another over the course of time.

So being made of the same thing doesnt necessarily mean that we evolved from something.

Dont worry about that second sentence it makes no sense anyway and also has not been proven scientifically i dont think..

I hope this helps you out a little.:)))

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.