Acommon inhabitant of human intestines is the bacterium escherichia coli, named after the german pediatrician theodor escherich, who identified it in 1885. a cell of this bacterium in a nutrient-broth medium divides into two cells every 20 minutes. the initial population of a culture is 40 cells. (a) find the relative growth rate. k = 3ln(2) correct: your answer is correct. hr−1 (b)f cells after 8 hours. cells (d) find the rate of growth after 8 hours. (round your answer to the nearest integer.) cells/h (e) when will the population reach a million cells? h