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Biology Question 99 – NEET-UG 2025

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Which one of the following is an example of ex-situ conservation?

Understand the two main types of biodiversity conservation: in-situ and ex-situ.

● Video Walkthrough
Step 1: Define Ex-situ Conservation✦ Active

Ex-situ conservation refers to the conservation of components of biological diversity outside their natural habitats. This approach is used when species are critically endangered or their natural habitat is severely threatened.

Step 2: Evaluate In-situ Conservation Examples○ Expand

Options (1) National Park, (2) Wildlife Sanctuary, and (4) Protected areas are all examples of in-situ conservation. In-situ conservation involves protecting species within their natural habitats or ecosystems.

💡 Teacher's Secret Hint

In-situ conservation focuses on preserving the entire ecosystem, not just individual species.

Step 3: Identify the Ex-situ Example○ Expand

Option (3) Zoos and botanical gardens are classic examples of ex-situ conservation. In zoos, animals are kept and bred in controlled environments, while botanical gardens serve a similar purpose for plants, preserving genetic diversity outside their native environments.

💡 Teacher's Secret Hint

Other ex-situ methods include gene banks, seed banks, and cryopreservation.

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