3
QuizMultiple Choice

Global Connection: Why Invasive Species Thrive

Question 3 • Environmental Science (2025-2026)

Which of the following is the best description of the cane toad’s introduction to Australia?

Answer
A
It was a successful biological control mechanism for cane beetles.
B
It was a failed biological control mechanism for cane beetles.
C
It was a successful method for reducing freshwater crocodile populations.
D
It was a failed attempt to eradicate South American fire ants.

Explanation

Cane toads were introduced to Australia in an effort to control cane beetles that were damaging sugarcane crops. The toads did not effectively control the beetles and instead became an invasive species, so the introduction was a failed biological control mechanism for cane beetles.

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