In a controlled experiment, which group experiences the test? A. Instruments and equipment
B. Experimental group
C. Control group
D. Measurements and observations

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.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.

a covalent bond, specfically triple bond