Scientists studying a wild population of mantled howier monkeys found the werage birth rate to be 0.22 and the average death rate to be 0.12. At the start of the study, the population consisted of 13 monkeys. Assuming no immigration or emigration, which of the following best describes the change in population size that will occur over the next year? a. The population size will decrease because a population of 13 is too small to sustain itself.
b. The population will decrease because more monkeys are dying each year than are being born.
c. The population will increase exponentially because it is so small that there are likely few competitors and abundant resources
d. The population will increase because more monkeys are being born each year than are dying.