A population of fish exhibits multiple variations in color, size and mouth structure; however, there does not appear to be any selective advantage for these traits because all individuals are allowed to breed and survive! Which of the following is most likely occurring in this fish population?

This population of fish is undergoing the process of Genetic diversity

Explanation:

The phenomenon known as Genetic diversity is described as variation that occurs within a species or community. Individual organisms are unique owing to their genetic makeup. Ample variation within a population, or genetically diverse population, allows it to better survive various sorts of stresses from the environment, ensuring better survival of the species.

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 law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.