entation of an aerobic bacterium grown on methanol gave the following experimental results: Time (h) 0 2 4 8 10 12 14 16 18 X (g/L) 0.2 0.211 0.305 0.98 1.77 3.2 5.6 6.15 6.2 S (g/L) 9.23 9.21 9.07 8.03 6.8 4.6 0.92 0.077 0.0 Calculate: a) The maximum growth rate b) The specific growth rate and the doubling time c) The apparent yield (yXS = g Biomass / g Substrate) d) KS value