Consider a population whose growth over a given time period can be described by the exponential growth model: dN/dt = rn. Identify each of the following statements as TRUE or FALSE. a. A population with an r of 0.1 will decrease over time. b. A population with an r of O will have no births or deaths during the time period under consideration. c. If r stays constant over a 10-year period, the population will increase by the same number of individuals per year during that period. d. Any population with a positive value of r will grow exponentially.