Aparent has blue eyes and passed this characteristic on to his child. which molecule contains the information necessary for passing on this characteristic? protein
dna
lipid
enzyme

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 think the answer is a.keratin is the pigment responsible for skin color.