How does DNA and genes play a role in variation and diversity of living things?

Genetic material provides the information that allows living things to function. ... Variations within this information are more likely in sexual reproduction. Changes in genetic information (for example, from mutation) can give rise to variation in characteristics and can be passed on through the generations.

answer; i believe that the correct answer is (b) melosis; plz check first.good luck

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.