Which statement best descnbes the amount of catalyst that remains at the end of a reaction?
more catalyst is present at the end than at the beginning of the reaction
less catalyst is present at the end than at the beginning of the reaction
the amount of catalyst is the same at the end as at the beginning of the reaction.
the catalyst is consumed by the reaction so none remains at the end of the reaction

Explanation:

the amount of catalyst is same at the end as at the beginning of the reaction .

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

its temperature is increasing. this causes molecular vibrations to increase.