Afrog captures and consumes a fly. which example of the characteristics of life is most similar? a. a male bird sings to attract a mate. ob. a porcupine raises its quills at the sight of a predator. c.a rabbit urinates. od. a bacterium splits into two cells. e.a cow grazes in a grassy meadow.

The correct answer would be "A cow grazes in a grassy meadow".

Explanation:

A frog captures and consumes a fly demonstrates a heterotrophic form of nutrition.

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.

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.