Classification of organisms is done while considering many factors such as:Cell type- whether the organism is prokaryotic or eukaryoticCell structure- This includes both the presence and composition of the cell wallBody type- whether the organism is multicellular or unicellularMode of nutrition- the method through which the organism achieves its nutritional requirement, by consuming other organisms (heterotroph) or making its own food (autotroph)
Humans get there energy primarily from glucose I believe. We break down glucose to get ATP (Adenosine Triphosphate) which is then used to supply energy to our cells in order to function.
