Bacterial viability in colony forming units (CFU) per ml of cultures from panel A, grown until OD600 0.5, washed and re-suspended in carbon-free minimal medium. Death rates (slopes of the exponential fits) are listed in Table EV1. Initial density for fast growth (lighter shades) is lower than for slow growth (darker shades), due larger cell sizes that lead to lower cell densities per OD600. 