PL HEL A sprig of an Elodea plant was placed in a test tube. the test tube was then placed in
sunlight
The bubbles of gas in the diagram are composed mainly of

hydrogen

nitrogen

oxygen

carbon dioxide

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.

answer; incomplete dominance;