Which of the following is the most important cause for animals and plants being driven to extinction

Q: What is NEET?

NEET is a competitive examination conducted in India. This question is from the 2019 NEET Biology paper.

Q: How can I prepare for NEET Biology?

To prepare for NEET Biology, practice previous year questions (PYQs), understand concepts thoroughly, and solve mock tests regularly. This 2019 question covers Biodiversity and Conservation topic.

Q: What is the difficulty level of this question?

This NEET 2019 Biology question has a easy difficulty level and is marked as an important question.

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Question

Which of the following is the most important cause for animals and plants being driven to extinction?

Accepted Answer

Correct Answer: B &mdash; Habitat loss and fragmentationHabitat loss and fragmentation is globally recognised as the single most important driver of biodiversity loss and species extinction. It destroys natural ecosystems, reduces available living space, isolates populations (restricting gene flow), and disrupts ecological interactions. Large-scale deforestation, conversion of land for agriculture and urbanisation are prime examples.The other causes collectively constitute what ecologists call the 'Evil Quartet' of biodiversity threats:Alien species invasion (A): Significant but secondary to habitat loss.Drought and floods (C): Natural disturbances that have lesser long-term impact on extinction rates compared to anthropogenic habitat destruction.Economic exploitation / Over-exploitation (D): Important, but again secondary to habitat loss.Key Concept: The 'Evil Quartet' (causes of biodiversity loss): (1) Habitat loss and fragmentation, (2) Over-exploitation, (3) Alien species invasion, (4) Co-extinctions. Habitat loss ranks first among these.

Which of the following is the most important cause for animals and plants being driven to extinction?

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Which of the following is the most important cause for animals and plants being driven to extinction?

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Frequently Asked Questions