Bio 3.4 Population Dynamics

What is the definition of population density?

• The number of individuals per unit area

• The total number of species in an ecosystem

• The movement of individuals into a population

• The maximum number of individuals an environment can support

What does immigration refer to in population studies?

• Individuals leaving a population

• Individuals entering a population

• The total number of individuals in a population

• The growth rate of a population

What is emigration?

• The movement of individuals into a population

• The movement of individuals out of a population

• The number of births in a population

• The number of deaths in a population

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Which term describes rapid population increase under ideal conditions?

• Logistic growth

• Exponential growth

• Carrying capacity

• Population distribution

What is the carrying capacity of an ecosystem?

• The number of individuals per unit area

• The maximum number of individuals an environment can support

• The rate at which a population grows

• The pattern of population distribution

What does a logistic growth curve look like?

• A straight line

• An S-shaped curve

• A zigzag pattern

• A U-shaped curve

Which condition is necessary for exponential growth to occur in a population?

• Limited resources

• Unlimited resources and ideal conditions

• High predation rates

• Low birth rates

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How does increased predation affect population growth?

• It increases population size

• It decreases population size

• It has no effect

• It causes exponential growth

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If a population exceeds its carrying capacity, what is likely to happen?

• The population will continue to grow exponentially

• The population will decrease due to limited resources

• The population will remain stable

• The population will migrate

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Which factor would most likely cause a population to shift from exponential to logistic growth?

• Unlimited food supply

• Increased competition for resources

• Absence of predators

• Constant birth rate

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