To test the hypothesis that plants grow faster in green light, a student set up 3 of the same type of plants. she placed the first plant under a green light, the second plant under a regular light bulb, and the third plant under a red light.

what is the dependent variable in this experiment?

i it is d i hope it

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.