Provides both equibrium and aesthetics to a piece of art

Equilibrium means that two forces are balanced. This is why some of the famous artwork doesn't usually have a bunch of, say, black on one side and then nothing on the other.

The answer is balance

answer; /// i believe the correct answer is (thrombocytopenia); (a)

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.