Look at the offspring you created in your model. Have any of the offspring inherited a more beneficial genetic combination than the others? How does this affect their survival? Explain your reasoning.

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.

it should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time