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Questions and Answers
According to the analogy used by Paul Ehrlich, what happens when more and more rivets are removed from the airplane?
According to the analogy used by Paul Ehrlich, what happens when more and more rivets are removed from the airplane?
- The airplane becomes stronger
- The airplane becomes dangerously weak (correct)
- The airplane becomes more efficient
- The airplane becomes faster
What does the loss of rivets on the wings of the airplane represent in the analogy?
What does the loss of rivets on the wings of the airplane represent in the analogy?
- A minor inconvenience
- A serious threat to flight safety (correct)
- A negligible impact on the ecosystem
- An improvement in flight performance
What is the 'rivet popper hypothesis' used by Paul Ehrlich?
What is the 'rivet popper hypothesis' used by Paul Ehrlich?
- A method to remove rivets from airplanes
- A strategy to strengthen ecosystems
- A theory about the extinction of species
- An analogy to explain the impact of species extinction on ecosystems (correct)
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Study Notes
The Rivet Analogy
- As more and more rivets are removed from the airplane, it becomes increasingly fragile and prone to catastrophic failure.
- The loss of rivets on the wings of the airplane represents the extinction of species from an ecosystem.
The Rivet Popper Hypothesis
- The 'rivet popper hypothesis' is used by Paul Ehrlich to describe the sudden and unpredictable collapse of an ecosystem when too many species are lost.
- This hypothesis suggests that the removal of one or more key species can lead to a cascade of extinctions, ultimately resulting in the collapse of the entire ecosystem.
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