what is the frequency of a trait that is better able to survive in a new habitat increases in a population over time​

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.

looks like the answer is     c     to me!

69 is the correct math for the amino acids