Micro - heterogeneous liquids are characterized by particular heterogeneous micro - structure, which contains labile bonded supra - molecular aggregates. Typical examples of such liquids are alcohols, ionic liquids and various soft - matter liquids. In addition to the usual molecular dynamics, common to all liquids, the dynamics of these systems is characterized by kinetic aspect, which is related to the dynamics of labile supra - molecular aggregates, instead of individual atoms or molecules. The aim of the thesis is to reveal the specificities in the dynamics of micro - heterogeneous liquids, which are attributed precisely to this kinetic aspect. Particularly, dynamics will be studied by extraction of various dynamical quantities from computer simulations, such as the van Hove correlation function G(r,t), the associated scattering function F(k,t) and the dynamical structure factor S(k,ω). It will be shown that heterogeneous micro - structure leaves marked signature in these observables, which enables to directly distinguish between dynamics and kinetics in these systems. While dynamics is shown to be governed by the time evolution of charge order, which determines the arrangement of charged species in the system, kinetics is governed by the existence of neutral species and their size. Study is performed for several types of liquids, ranging from simple disordered liquids, such as carbon tetrachloride or acetone, and complex disordered liquids, such as water and small monols. The purpose of the thesis is to elaborate the theoretical and computational framework for exploring complexity in liquids.