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The Prickly pear cactus introduced into ...

The Prickly pear cactus introduced into Australia in the early 1920's caused havoc by spreading rapidly in to millions of hectares of rangeland because -

A

Prickly pear cactus is a native of Australia

B

An exotic species of moth was introduced into Australia

C

There were no natural predators of the cactus in Australia.

D

It had a mutualistic relationship with moths

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The correct Answer is:
C
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