Polymorphism: What is it? What does it mean?

I really liked this paragraph found within my post:

"A polymorphism that persists over many generations is usually maintained because no one form possesses an overall advantage or disadvantage over the others in terms of natural selection. Some polymorphisms have no visible manifestations and require biochemical techniques to identify the differences that occur between the chromosomes, proteins, or DNA of different forms. The castes that occur in social insects are a special form of polymorphism that is attributable to differences in nutrition rather than to genetic variations."

I found that this site was helpful in supporting a creationist perspective. It also highlights the differences between micro and macro-evolution (specifically when it talks about the social insects). I have learned over the years of speaking with various people about evolution that the definition of terms is vital to understand and embrace different perspectives on origin of life. When analyzing this site, I would trust the information and use it to further a point being made or build on a theory. It seems like a good resource for a compilation of knowledge. Overall, I would suggest it for use.

 

The actual site: http://www.britannica.com/EBchecked/topic/468786/polymorphism