Ecology Part 2 Review

What is population growth?

• Decrease in the number of individuals in a population over time.

• The average age of individuals in a population.

• The movement of individuals from one population to another.

• Increase in the number of individuals in a population over time.

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Define carrying capacity.

• The minimum number of individuals an environment can support sustainably.

• The average number of individuals an environment can support sustainably.

• The maximum number of individuals an environment can support unsustainably.

• Maximum number of individuals an environment can support sustainably.

What are density-dependent factors?

• Factors that affect a population based on its size.

• Factors that affect a population based on its location.

• Factors that affect a population based on its density.

• Factors that affect a population based on its age.

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Give an example of a density-independent factor.

• Climate change.

• Natural disasters

• Predation.

• Competition for resources.

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What is competition in population ecology?

• Interaction between individuals or species for unlimited space.

• Cooperation between individuals or species for limited resources.

• Interaction between individuals or species for limited resources.

• Interaction between individuals or species for unlimited resources.

What are the two types of population growth?

• linear growth and geometric growth

• arithmetic growth and geometric growth

• exponential decay and logistic decay

• exponential growth and logistic growth

How does carrying capacity affect population growth?

• Carrying capacity limits population growth by causing a decrease in birth rates and an increase in death rates when resources become scarce.

• Carrying capacity only affects death rates, not birth rates.

• Carrying capacity increases population growth by providing more resources.

• Carrying capacity has no effect on population growth.

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Name three density-dependent factors.

• Genetic mutations, natural disasters, and human activities.

• Climate change, pollution, and habitat destruction.

• Migration, birth rate, and death rate.

• Competition for resources, predation, and disease

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What are the effects of density-independent factors on population growth?

• Density-independent factors only affect population growth in low-density populations.

• Density-independent factors affect population growth regardless of population density.

• Density-independent factors have a greater impact on population growth in dense populations.

• Density-independent factors have no effect on population growth.

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All of the carbon in existence is continually recycled in the carbon cycle

• True
• False

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