How does an increase in global temperature affect the amount of carbon dioxide in the air?

i believe it would be the lungs.

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.

i believe the answer would be b. hope it : )

sex cells are usually half's then they find another half and make a fertilize egg