Plants produce carbon dioxide as a product of cellular respiration. but you know that plants release a net amount of oxygen, not carbon dioxide. develop a logical argument for how this is possible.

answer; i believe the correct answer is ( proteins );

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.