Understanding Logistic Growth

Mr. Anderson explains logistic growth, contrasting it with exponential growth. He uses rabbits to illustrate population dynamics, growth rates, and carrying capacity. The video includes models and mathematical equations to demonstrate these concepts. It also discusses species growth strategies, highlighting R-selected and K-selected species.

What is the primary difference between logistic and exponential growth?

• Exponential growth is slower than logistic growth.

• Logistic growth accounts for carrying capacity, exponential growth does not.

• Exponential growth considers carrying capacity, logistic growth does not.

• Logistic growth has a constant rate, while exponential growth does not.

What happens to a population when it reaches its carrying capacity?

• The population size doubles.

• The population continues to grow exponentially.

• The population size stabilizes.

• The population size decreases to zero.

In the Minecraft model, what prevented the chickens from increasing indefinitely?

• Lack of food.

• Limited space.

• Predators.

• Weather conditions.

In the NetLogo model, what factor caused the rabbit population to fluctuate?

• Introduction of new species.

• Weather changes.

• Availability of grass.

• Predation by wolves.

What does the term 'dn/dt' represent in the context of population growth equations?

• The total population size.

• The change in population size over time.

• The carrying capacity.

• The growth rate.

How does the logistic growth equation differ from the exponential growth equation?

• It includes a term for carrying capacity.

• It is not based on population size.

• It uses a different growth rate.

• It does not involve time.

What characterizes an R-selected species?

• Slow growth and high parental care.

• Rapid growth and many offspring.

• Stable population size.

• Long lifespan and few offspring.

Which of the following is a characteristic of K-selected species?

• They have a high growth rate.

• They produce many offspring with little parental care.

• They experience frequent population crashes.

• They invest heavily in a few offspring.

What type of growth curve do humans typically follow?

• Linear growth.

• Exponential growth with no carrying capacity.

• Logistic growth with a stable carrying capacity.

• Boom and bust cycles.

What is a potential challenge in classifying trees as R-selected or K-selected?

• They do not have a carrying capacity.

• They do not fit into either category.

• They grow too quickly to measure.

• They produce both many offspring and grow slowly.