Population ecologists follow the fate of same-agecohorts to(A) determine a population’s carrying capacity.(B) determine the birth rate and death rate ofeach group in a population.(C) determine if a population is regulated bydensity-dependent processes.(D) determine the factors that affect the size of a population.

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Population Growth

R and K Selection

R and K selection are concepts in ecology used to describe traits in the fluctuation of a population or population dynamics. For example, they describe the life-association traits between parent and offspring, such as quantity or number of young ones born at a time, quality of parental care, the age to maturity, and reproductive effort.