On Macquarie Island invasive rabbits were causing declines in palatable vegetation, and feral cats were preying on native birds. What was the primary result when a flea carrying a virus that killed the rabbits decreased rabbits' numbers on the island?
A) Feral cats switched from eating rabbits to eating native birds.
B) Feral cats also died off because of the loss of the rabbit prey.
C) Native bird populations on the island increased.
D) Native plant populations on the island declined.
Correct Answer:
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