AP Environmental Science: Unit 3 Populations

What is population growth?

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

• The average number 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 population distribution.

• The number of people in a given area or region.

• The average age of people in a given area or region.

• The number of males and females in a given area or region.

• Pattern or spread of people in a given area or region.

What is population density?

• Population density is the number of individuals per unit area or volume.

• Population density is the average age of a population.

• Population density is the number of individuals per unit time.

• Population density is the total number of individuals in a population.

Explain 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 population dynamics?

• The study of how individuals within a population interact with each other.

• The study of how populations of organisms remain constant over time.

• The study of how populations of organisms change due to external factors.

• The study of how populations of organisms change over time.

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What factors contribute to population growth?

• emigration, decreased birth rate, natural disasters

• birth rate, immigration, improved healthcare

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How does population distribution affect ecosystems?

• Population distribution only affects the physical environment of ecosystems.

• Population distribution affects ecosystems by determining the availability of resources, competition for those resources, and the overall balance of species within the ecosystem.

• Population distribution has no impact on ecosystems.

• Population distribution only affects the behavior of individual organisms within ecosystems.

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What are the different methods used to calculate population density?

• Multiplying the total population by the total land area

• Adding the total population and the total land area

• Subtracting the total population from the total land area

• Dividing the total population by the total land area, dividing the total population by the total number of households, and dividing the total population by the total area of a specific region.

Discuss the concept of carrying capacity in relation to resource availability.

• Carrying capacity is the average number of individuals of a species that an environment can sustainably support given the available resources.

• Carrying capacity is the maximum number of individuals of a species that an environment can sustainably support given the available resources.

• Carrying capacity is the maximum number of individuals of a species that an environment can support regardless of the available resources.

• Carrying capacity is the minimum number of individuals of a species that an environment can sustainably support given the available resources.

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How do population dynamics impact biodiversity?

• Population dynamics have no impact on biodiversity.

• Biodiversity is solely determined by external factors and not influenced by population dynamics.

• Population dynamics only impact the size of individual species, not overall biodiversity.

• Population dynamics impact biodiversity by influencing the abundance and distribution of species within an ecosystem.

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