Maddy, carole, and maria are enjoying a day at the beach. they are body surfing and playing on their boards. imagine that wave a catches up with wave b. describe the change, if any, in wave amplitude.

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.