If a cell needs to pull in as much potassium as it possibly can from the environment, which process will allow this to occur?

A.
active transport
B.
passive transport
C.
osmosis
D.
diffusion

then that particular organisms become extinct.

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.

idk lol use google m8