This type of approach denotes a clear 'reductionism' in the contents of the system itself because in biology, it is more realistic to consider the functionality of systems such as "Complex Systems" that do not operate in a linear way. These systems employ a stochastic approach, in which the interaction of the various constituents generates an ‘Emergent Behaviour’ (EB) <ref>{{Cite book | This type of approach denotes a clear 'reductionism' in the contents of the system itself because in biology, it is more realistic to consider the functionality of systems such as "Complex Systems" that do not operate in a linear way. These systems employ a stochastic approach, in which the interaction of the various constituents generates an ‘Emergent Behaviour’ (EB) <ref>{{Cite book |