A square kilometer of forest has roughly two hundred deer. The term used to describe this number would be population density. It is a key geographic term used to describe living organisms in a specific area.
I think I understand your question, but you question has so many errors in it that it doesn't really make sense.
C) DNA
Inside the nucleus, DNA and proteins together form chromosomes.
This is a large, covalently-bonded molecule that has a repeated structural unit. This is a complex carbohydrate made from many different sugar molecules joined together. A macromolecule that contains carbon, hydrogen, oxygen, and nitrogen, which is used by the body for growth and repair.
