The Evil Quartet: Major Biodiversity Loss Causes — NEET Biology
✅ Asked in NEET 2026Causes of biodiversity losses: The accelerated rates of species extinctions that the world is facing now are largely due to human activities. There are four major causes ('The Evil Quartet' is the sobriquet used to describe them).
NTA tests students on the four major human-caused factors driving species extinction, collectively called 'The Evil Quartet.' Students often confuse these causes or fail to distinguish between natural and human-induced extinctions. The key point is that all four causes are HUMAN ACTIVITIES, not natural events. To score correctly, remember: habitat destruction, poaching/overexploitation, pollution, and invasive species are the primary drivers tested in NEET. When answering, always connect extinction rates to specific human actions rather than general environmental changes.
This paragraph was tested 4 times in NEET.
'The Evil Quartet' of biodiversity loss includes which of the following?
Match List-I with List-II and choose the correct combination. (NEET 2025) Column I A. The Evil Quartet B. Ex situ C. Lantana camara D. Dodo Column II I. Cryopreservation II. Alien species invasion III. Causes of biodiversity losses IV. Extinction
These are regarded as major causes of biodiversity loss: (NEET 2024) A. Over exploitation B. Co-extinction C. Mutation D. Habitat loss and fragmentation E. Migration Choose the correct option:
Habitat loss and fragmentation, over-exploitation, alien species invasion and co-extinction are causes for: (NEET 2022 Phase 1)
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.