Three galaxies as examples: evolution of SFR (purple shading), Ṁ_out, the rate of unbound outflow for the inner shell [1.5R_opt, 0.5R₂₀₀) (solid green lines), Ṁ_ex, the expelled mass rates (solid orange lines), and Ṁ_in, the inflow mass rate (dotted cyan line) as a function of lookback time (the inset labels denote the galaxy ID). The infall time of satellites (blue arrows) entering the virial radius and the time of minor and major mergers (pink and red arrows, respectively) are also indicated (see Fig. C.1 to see the diversity of behaviour in our sample).