Select all that apply.

all cells have similar structures, including

a. a plasma membrane
b. vacuoles
c. cell wall
d. cytoplasm
e. chloroplasts
f. protoplasm

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.