Which of the following are examples of science? mark all that apply.

a.) a journalist writes a story about a man who became rich by buying stock on tuesdays.
b.) a woman chooses an item to purchase based on its packaging.
c.) a farmer consults a weather almanac to decide the best time to plant a crop.
d.) a drug manufacturer tests a drug to determine its safety

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.