Which of the following best identifies a physical digestive process?

A. Heat formation
B. Peristalsis
C. Acid secrection
D. Enzyme action

enzyme action

Explanation:

During enzyme action , the enzyme acts as a catalyst to break down the food leading to a further and easier digestive process.

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.