Central Place Theory is a geographical theory that seeks to explain the size and spacing of human settlements. It rests on the notion that centralization is a natural principle of order and that...
Its just to help retain the structure of the cell, but in some cells it is also to take in toxic's and keep the hydrostatic pressure.But if this is homework it will just be wanting to maintain the...
The theory was created by the German geographer Walter Christaller, who asserted that settlements simply functioned as 'central places' providing services to surrounding areas.