Answer:
C
Explanation:Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat. Examples include areas which have been cleared of existing vegetation (such as after tree-felling in a woodland) and destructive events such as fires.
The DNA is used by special proteins, called histones to make chromatin. The chromatin condenses even more, then forming chromosomes. This means chromatin is lower order of DNA organization and chromosomes are higher in it.
The number of cytosine in a DNA molecule equals the number of guanine.
I think it called Biodiversity
