NEETBotanyBiodiversity and its Conservation
Read the following statements regarding alien species invasions: (A) The introduction of Nile perch into Lake Victoria in East Africa led to the extinction of more than 200 species of cichlid fish. (B) Carrot grass (Parthenium), Lantana and water hyacinth (Eichhornia) are invasive weed species that pose a threat to native species in India. (C) The illegal introduction of the African catfish (Clarias gariepinus) for a
Options
- ATwo
- BThree
- CFour
- DOne
Correct answer
B. Three
Step-by-step solution
Statement (A) is correct. The introduction of the Nile perch into Lake Victoria eventually led to the extinction of an ecologically unique assemblage of more than 200 species of cichlid fish. Statement (B) is correct. Parthenium, Lantana, and Eichhornia are well-known invasive weed species that cause environmental damage and threaten native species. Statement (C) is correct. The African catfish (Clarias gariepinus) was illegally introduced for aquaculture and threatens indigenous catfishes. Statement (D) is incorre