These are regarded as major causes of biodiversity loss: A. Over exploitation B. Co-extinction C. Mutation D. Habitat loss and fragmentation E. Migration Choose the correct option:

The major causes of biodiversity loss (the 'Evil Quartet') are: habitat loss and fragmentation, over-exploitation, alien species invasions and co-extinctions. Mutation and migration are not major causes of biodiversity loss. So A, B and D only are correct.