7) Check the terms that fit into the science category "Biology". Select all that apply. air light solar system water animals sound land plants

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.

layer 3 is younger than layer 6.

yes we can.   a lady urinates from her urethra.