The mammary region is to the sternal region.

Out of the following given choices;

superior

lateral

inferior

medial

The answer is lateral. The sternal region is the region where the breast bone (sternum) is located (which is between the two straddling mammary regions – regions of the breast). Therefore, they are lateral to each other.

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.

other information encoded in your genes might distinguish you from the others in the group