Small population size is your answer mate.
Answer:
Carbohydrates covalently linked to proteins (glycoproteins) or lipids (glycolipids) are also a part of cell membranes, and function as adhesion and address loci for cells. The Fluid Mosaic Model describes membranes as a fluid lipid bilayer with floating proteins and carbohydrates.
Explanation:
1,000 years
In many parts of the world, trees can provide a climate history for hundreds of years, with some extending back 1,000 years or more.
