An explanation of how the natural world works.
Because they have not been distrubed
In eukaryotic cells DNA is in a nucleus where are in prokaryotic cells DNA is free
The theory was originally developed as island biogeography, to explain species richness of actual islands, principally oceanic. It proposes that the number of species found in an undisturbed insular environment is determined by immigration and extinction.
Explanation:
Wilson of Harvard, developed a theory of "island biogeography" to describe such uneven distributions. They suggested that the number of species on any island displays a balance within the rate at which new species establish it and the rate at which residents of secured species become extinct.
In a normal human karyotype, depending on the part of mitosis the cell is in, there are either 23 or 46.
