<P> Modelling biological systems is a significant task of systems biology and mathematical biology . Computational systems biology aims to develop and use efficient algorithms, data structures, visualization and communication tools with the goal of computer modelling of biological systems . It involves the use of computer simulations of biological systems, including cellular subsystems (such as the networks of metabolites and enzymes which comprise metabolism, signal transduction pathways and gene regulatory networks), to both analyze and visualize the complex connections of these cellular processes . </P> <P> Artificial life or virtual evolution attempts to understand evolutionary processes via the computer simulation of simple (artificial) life forms . </P>

What branch of biology creates models to make whole biological systems understandable