Suppose the phloem of a seed plant is damaged and does not function properly.
How will this most directly affect the plant?
a) Water will be released from the leaves.
b) The plant will become rigid.
c) Water will not be taken up by the roots.
d) Food will not be carried away from the leaves.

D, Food will not be carried away from the leaves

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.