Answer: C determine the birth rate and death rate of each group in a population.
Explanation: Population ecologists follow the fate of same-age cohorts to
a. determine the factors that regulate the size of a population.
b. determine if a population's growth is cyclic.
c. determine the birth rate and death rate of each group in a population.
d. determine a population's carrying capacity.
e. determine if a population is regulated by density-dependent processes.
