The extinction of many species of Cichl...

The extinction of many species of Cichlid fish in Lake victoria is mainly attributed to

Habitat fragmentation

Overexploitation

Coextinction

Alien species invasion

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Assertion : The Nile perch introduced into lake Victoria in east Africa led to the extinction of an ecologically unique assemblage of more than 200 species of cichlid fish in the lake. Reason : When alien species are introduced deliberately for economic or other uses, they often become invasive and cause extinction of indigenous species. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

AAKASH SERIES-BIODIVERSITY AND CONSERVATION-EXERCISE-I Loss of Biodiversity

Which of the following species extinct in the last 500 years due to ov...
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Match the countries Column-I with their respective symbols based on an...
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Introduction of Nile Perch in Lake Victoria of South Africa resulted i...
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A weed, which has invaded many forests lands of India is (a) Partheniu...
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The most important human activity, leading to the extinction of wildli...
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Habitat destruction includes
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The extinction of passenger pigoen was due to
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Choose the correct match
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Habitat loss and fragmentation, over-exploitation, alien species invas...
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The extinction of many species of Cichlid fish in Lake victoria is ma...
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The major cause of loss of number of migratory birds is
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Eichhornia is a
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Which one of the following fish is being illegally introduced for aqua...
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Introduction of alien species into new area poses a threat to extincti...
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Which of the following is not a cause for loss of biodiversity
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Which of the following is not an invasive alien species in the Indian ...
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What is common to the following plants? Ne- penthes, Psilotum, Rauwolf...
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What is common to Lantana, Eichhornia and African catfish ?
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The extinction of passenger pigoen was due to
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Which of the followiing statements is correct?
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