Polysaccharides would give you immediate energy burst I think
C is correct. the rest is either about food webs or about both food webs and food chains.
B. The levels of classification increased. Previously there were only 2 domains of life, Bacteria and Eukarya, but an additional domain and Kingdom were added when the distinction of Archaea was observed.
Red blood cells are disc shaped. It is thought one factor that allows them to have this shape is because they do not have a nucleus. This tends to increase amount of space inside the cell for hemoglobin.
They have a flexible disc shape which helps increase the surface- to- area volume ratio which enables oxygen and carbon dioxide to diffuse across the red blood cell's plasma membrane more readily.
Their disc shape also enables them to squeeze through tiny capillaries that are half their size .
Answer:An inherited, natural selection.
Explanation: Adaptation is the process through which living organisms develop mechanisms this mechanisms may be Inherited to enable them survive competition and other prevailing circumstances. Which can also be environmental, climatic factors etc.
Adaptation helps to ensure the principle of NATURAL SELECTION,where organisms which have been able to develop similar mechanisms or have natural mechanisms that has enabled them to survive the prevailing circumstances in the habitat.
