Home Biology Organisms and Populations Populations Attributes The population explosion that occurred short…
Biology Organisms and Populations Populations Attributes Single Correct MCQ
Published on: August 14, 2026

The population explosion that occurred shortly after the prickly pear cactus (opuntia) introduced to Australia in early 1920's is an example of-

A
Exponential growth
B
Emigration
C
A native species outcompeting an introduced species.
D
Immigration

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The correct answer is:
A

The introduction of Opuntia (prickly pear cactus) in Australia led to a rapid, unchecked increase in population due to lack of natural enemies, showing exponential population growth.

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