The bones that mainly form the orbital margin The bones that mainly form the orbital margin are​

it is the frontal bone The superior bony margin of the orbital rim, otherwise known as the orbital process, is formed by the frontal bone.

Explanation:

Sphenoid

Frontal

Zygomatic

Ethmoid

Lacrimal

Maxilla

Palatine

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.

b. to discover aspects of the natural world.

hopefully i .