1. A population doubles its biomass in 10 days. Assuming exponential growth, calculate the value of the specific growth rate.
2. Fecal bacteria occupy the guts of warm-blooded animals and do not grow in the natural environment. Their population dynamics in lakes and rivers, that is, following a discharge of raw sewage, can be described as one of exponential decay or death. How many days would it take for a bacteria concentration of 106 celUmL to be reduced to the public health standard of 102 cell/mL if the decay coefficient is 2 day-1?