Y1 = 0.39 m, y2 =-0.53 m, y4+y2 = 0.00 m, T = 1,00 8,2 = 0.45 Notice that when the green and blue waves match up, the red wave increases in
amplitude. What is happening?

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.

yes

explanation

they do and it slaps