19. A population of 20 bobcats was introduced to a barrier island to help control the large rodent population. The bobcat population's birth rate is 0.48 bobcats/year per capita, and the death rate is 0.21 bobcats/year per capita. Given the initial bobcat population, predict the population size after 2 years in the island. (Round to the nearest whole number) 20. The carrying capacity for a population is estimated at 500; the population size is currently at 400; and rmax Is 0.1. What is dN/dt