Question

Match each term to its description.MatchTermDefinitionReplacement-level fertilityA) a method to estimate how many years a variable will double given its growth rateDensity-independent factorsB) any limiting factor that is not affected by the number of individuals in a populationDensity-dependent factorsC) any limiting factor that is affected by the number of individuals in a populationRule of 70D) the number of children required to be born to offset deaths in a population

Answer 1

- Replacement-level of fertility

It is the amount of fertility needed in one population, to maintain the size of the population the same from one generation to another. (D)

- Density-independent factors

It is any force or factor that affects the size of a population regardless of its density, for example, environment pollution. (B)

- Density-dependent factors

It is any force or factors that affect a population in response to the number of individuals that conform to it, for example, competition or diseases. (C)

- Rule of the 70

It is a method used to determine the number of years that it takes a population to double its size based on its growth rate. (A)