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Extinctions, Such as the Extinction of the Heath Hen on Martha's

Question 124

Multiple Choice

Extinctions, such as the extinction of the heath hen on Martha's Vineyard, Massachusetts, occur at the population or species level.But factors at other levels can be instrumental in causing an extinction.Which factor in the heath hens' extinction operated at the community level of diversity rather than the population level?


A) Fire
B) Hard winter
C) Influx of predators
D) Poultry disease
E) Demographic stochasticity

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