PLZ HELP! WILL GIVE BRAINLIEST!

After watching the video, explain in your own words what happens when a virus gets in your body. Use the following words in your explanation:
Vaccine
Antibody
Immune System
Memory Cells

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.