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The alien species introduced into Lake V...

The alien species introduced into Lake Victoria that was responsible for the extinction of cichild fishes is

A

Murrels

B

Nile perch

C

Carrot grass

D

African catfish

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The correct Answer is:
B
Before the introduction of the Nile perch around 1970 , Lake Victoria supported around 300 species of cichlid fishes. Over half of these species are now extinct or too rare to be caught and studied.
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GRB PUBLICATION-BIODIVERSITY AND CONSERVATION-NCERT CORNER (EXEMPLAR PROBLEMS)
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  2. Which of the following countries has the highest biodiversity?

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  3. Which of the following is not a cause for loss of biodiversity ?

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  4. Which of the following is not an invasive alien species in the Indian ...

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  5. Where among the following will you find pitcher plant?

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  11. Which one of the following is an endangered plant species of India?

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  12. What is common to Lantana, Eichornia and African catfish ?

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