Topic: Biodiversity: concept, patterns, importance, loss· Ecology and Environment

These are regarded as major causes of biodiversity loss:A. Over exploitationB. Co-extinctionC. MutationD. Habitat loss and fragmentationE. MigrationChoose the correct option:

1. A, B and D only

2. A, C and D only

3. A, B, C and D only

4. A, B and E only

Doubtly Asked 30 Oct 2026 NEET UG 2024 Practice test neet Save WhatsApp Report

1 answer

Best answer

Answer: 1. A, B and D only

Key idea: the "evil quartet" of biodiversity loss is habitat loss and fragmentation, over-exploitation, alien species invasion and co-extinction.

A (over-exploitation), B (co-extinction) and D (habitat loss and fragmentation) are major causes. Mutation (C) is a natural source of variation and migration (E) is movement of organisms; neither is a major cause of loss.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

Was this answer helpful?

These are regarded as major causes of biodiversity loss:A. Over exploitationB. Co-extinctionC. MutationD. Habitat loss and fragmentationE. MigrationChoose the correct option:

1 answer

Your answer