Section 14.4 Population Growth Patterns
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Name ____________________
Vocabulary
Immigration
Emigration
Exponential growth
Logistic growth
Carrying capacity
Population crash
Limiting factor
Density dependent limiting factor
Density independent limiting factor
Key Concept Questions
1) What conditions might allow a population to grow?
2) What conditions might cause a population to decrease in size?
3) What 4 factors affect the size of a population?
4) What determines the rate of growth for a population?
5) Draw an exponential growth curve and explain what is happening to the
population.
6) Draw a logistic growth curve and explain what is happening to the
population.
7) Explain why the actual size of a population is usually higher or lower than the
carrying capacity.
8) What might cause a population to crash?
9) List three examples of density dependent limiting factors.
10) Explain what the following sentence means: “A prey population depends upon
its predators as much as their predators depend upon them.”
11) Draw a simple predator-prey graph.
12) List 3 examples of density independent limiting factors.
13) A population of algae in a pond is limited in size by the amount of sunlight that
reaches the pond. Is sunlight a density dependent or density independent
limiting factor for the algae population?