8.12B - Ecological Succession and Disturbances

What event is used to illustrate a significant ecological disturbance?

• The Permian-Triassic Extinction Event

• The Ice Age

• The Cambrian Explosion

• The Cretaceous-Paleogene Extinction Event

What is the main advantage of desolate wastelands for pioneer species?

• Stable climate

• No competition

• Abundant food sources

• High biodiversity

Which type of succession occurs after a major disturbance leaves an area barren?

• Quaternary succession

• Primary succession

• Tertiary succession

• Secondary succession

What hypothesis suggests that moderate disturbances are beneficial for ecosystems?

• The Climax Community Theory

• The Biodiversity Maximization Theory

• The Intermediate Disturbance Hypothesis

• The Succession Stability Hypothesis

Who is credited with the quote, 'the only constant is change'?

• Isaac Newton

• Aristotle

• Charles Darwin

• Heraclitus