2. Are viruses alive? Why or why not?

no because they dont need to consume energy to survive and they cant replicate without a host cell

it does not follow all of the seven life processes (Movement, Respiration, Sensitivity, Nutrition, Excretion, Reproduction and Growth.) therefore it is non-living

Explanation:

hope this helpedd :)

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.