which question would you ask the client to obtain some environmental history of the pet? a. what medications does your pet take b. how many pets are in the house hold? c. has your pet had any previous surgeries? d. is your pet up to date with vaccinations?

B

Explanation:

That question lets you know how the pet is living on a daily basis. The other answer choices ask about medical history, but B asks about environment.

when it is at an intermediate population density

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.