AP Environmental Science Unit 2 Review Quiz

What are the three levels of biodiversity?

• Biomes, Ecosystems, and Organisms

• Species, Community, and Population

• Genetic, Ecosystem, and Species

• Genetic, Community, and Biomes

Why is genetic diversity important within a species?

• It decreases the species' ability to adapt to changes.

• It increases the species' chance of survival against changes.

• It ensures all individuals are identical.

• It has no significant impact on the species' survival.

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Which ecosystem service is directly provided by nature?

• Provisioning Services

• Supporting Services

• Cultural Services

• Regulating Services

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What is an example of a regulating service provided by ecosystems?

• Carbon sequestration by forests

• Pollination of crops by bees

• Recreational parks for human use

• Production of oxygen through photosynthesis

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What does the theory of island biogeography explain?

• The relationship between island size and species richness

• The migration patterns of birds to islands

• The impact of human activity on island ecosystems

• The evolution of species on islands compared to mainland

What leads to a higher species richness according to island biogeography?

• Islands with a colder climate

• Smaller island size

• Islands closer to the mainland

• Islands with fewer predators

What is an example of a periodic natural event that can disturb ecosystems?

• Forest fires

• Rainy seasons

• Volcanic eruptions

• Asteroid impacts

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What is a consequence of Earth's natural climate changes over thousands of years?

• Immediate increase in global temperatures

• Sudden shifts in biodiversity

• Rapid sea level rise

• Gradual changes in sea levels and temperatures

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What is primary succession?

• The recovery of an ecosystem after a forest fire

• The initial colonization of plants in a barren environment

• The process of community change in a fully developed ecosystem

• The replacement of one community by another over time

What role do keystone species play in an ecosystem?

• They are the most abundant species in an ecosystem.

• They have no significant impact on the ecosystem's structure.

• Their removal can cause the collapse of the ecosystem.

• They are the primary producers in the food chain.

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