Answer:
As somatic cells are diploid (2n) 2n=56
gametes receive only haploid set so, n=28
An area with unifying characteristic is called as a region. The region is a broad geographic area, which is differentiated from other because of the similar features. In a region one or more than one types vegetational climax might be present. It is the continuous and extensive part of the surface. The area in a region is indefinite.
Hence, the given blank can be filled with region.
I looked up your question just now and found this sight that has plenty of answers in it. https://www.britannica.com/place/Appalachian-Mountains
Hope this helps.
A compound is organic if it contains carbon covalently bonded to other atoms. Most often, the other atoms include hydrogen, oxygen, and/or nitrogen. A few carbon compounds, such as simple oxides (e.g. CO2) and cyanides (e.g. KCN) are excluded arbitrarily.
