Home Biology Biodiversity and Conservation Patterns of Biodiversity Which of these are examples of alien species…
Biology Biodiversity and Conservation Patterns of Biodiversity Single Correct MCQ
Published on: August 13, 2026

Which of these are examples of alien species invasion?

A
Nile perch was introduced in Lake Victoria in east Africa
B
African catfish in Indian River
C
Water hyacinth in India
D
All the above

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Verified by Experts
The correct answer is:
D

All given options are examples of alien (invasive) species:

∙ Nile perch introduced in Lake Victoria harmed native fish species.

∙ African catfish introduced in Indian rivers affects local biodiversity.

∙ Water hyacinth spreads rapidly in India and disturbs aquatic ecosystems.

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