The sheep end many debates with their bleating of 'four legs good, two legs bad." In our society, some people go along with the "crowd" the or simply repeat what they have been told or have read. Why are the sheep (think of REAL sheep) a good animal to represent these people?

The sheep follow the herd thinking more than most animals so they are apt to represent these.

Explanation:

In the novel "Animal Farm" the sheep are the common people who will parrot anything they are told is true by their authority and will not question it.

Thus, they are well played by the sheep who are known to be herd animals.

Sheep usually stay in their herd and follow their herd even to imminent deaths as their minds are not designed to think for themselves.

They also do not exist in the wild and like to have a master of the herd for themselves.

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.