in the formation of biofilms, such as those forming on unbrushed teeth, cell signaling serves which function?

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.

the animal that would be cutest if scaled down to the size of a cat? elephant

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.