What is the phenotype ratio for a monohybrid cross of two heterozygous individuals?

3:1 the dominant allele would show up in 3 and there would be recessive in 1

answer; /// i believe the correct answer is (reactants);

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.