NEET2026BiologyChapterActual
The 'Evil Quartet' describes the four major causes of biodiversity loss. Which of the following examples is incorrectly matched with its corresponding cause?
Options
- AExtinction of Steller's sea cow and passenger pigeon – Over-exploitation
- BEnvironmental damage caused by Parthenium and Eichhornia – Alien species invasion
- CExtinction of a host fish species leading to the extinction of its unique parasites – Co-extinctions
- DExtinction of more than 200 species of cichlid fish in Lake Victoria – Habitat loss and fragmentation
Correct answer
D. Extinction of more than 200 species of cichlid fish in Lake Victoria – Habitat loss and fragmentation
Step-by-step solution
The 'Evil Quartet' refers to the four major causes of biodiversity loss: habitat loss and fragmentation, over-exploitation, alien species invasions, and co-extinctions. Extinction of Steller's sea cow and passenger pigeon is due to over-exploitation by humans. Environmental damage and threat to native species by invasive weeds like Parthenium , Lantana , and Eichhornia are examples of alien species invasion. Extinction of a host fish species leading to the extinction of its unique parasites is an example of co-exti