DNA is a code, so which parts of the molecule (phosphates, sugars or nitrogen bases) ARE the code? Why do you think this is so?

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.

the answer you are looking for is the united states forest service.

hope this !

characteristics of hydrocarbons