Which of the following is a characteristic of members of the kingdom monera, or archaebacteria and eubacteria, that distinguishes them from members of all other kingdoms? a. absence of a cellular nucleus b. presence of cilia and flagella c. the ability to synthesize proteins d. the ability to undergo photosynthesis

"a.) well–developed vascular system."

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.