A population of foxes inhabits a small forest. The size of the population is currently below the forest's carrying capacity for the foxes. Which factor could cause an increase in the population's growth rate? A. The population's level of immigration falls below its level of emigration. B. The population's birth rate falls below its death rate after a predator is introduced. C. An increase in food availability increases the birth rate in the population. D. A lack of mating opportunities increases the population's level of emigration.

Which two factors are most likely to cause a population to increase?A.Increased emigrationB.Increased birthsC.Increased deathsD.Increased immigration

Select the correct answer.A population of herbivores is at its carrying capacity for its habitat. Which factor is likely to result in a sudden rise in population that far exceeds the carrying capacity? A. birth of young B. emigration C. immigration D. introduction of a new limiting factor

Select whether each statement refers to a density-dependent or density-independent factor for population growth.When a prey species becomes more common, predators can more easily find it and kill relatively more. This would be a factor that limits population growth.A hurricane would be a factor that would impact population size.A limit to population growth that has greater influence as population size increases such as a parasite that can more easily jump from host to host would be a factor.

A population of squirrels eats acorns from the local oak trees. Some years, oak trees produce many more acorns than usual.  Which of the following is the most direct effect of an increase in the number of acorns on the squirrel population?*2 puntosThe size of the population increasesThe population has fewer predatorsThe population expands its territory to new habitatsPopulation size decreases due to competition

A deer population has access to abundant but limited resources.  As the size of the deer population increases, how will this growth affect their population density?*2 puntosThe population density remains constantPopulation density increases until resource limit is reachedPopulation density grows indefinitelyPopulation density decreases