The teeming diversity of the rainforests has led to A. overpopulation of communities
B. Extinction of herbivores
C. species specialization
D. overcrowding in the canopy

it will increase due to the time span

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.

c. establishing proper sleep hygiene

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?