Which of the following conservation strategies involves the protection and maintenance of threatened species outside their natural habitat?

Step-by-step solution

Conservation strategies are broadly classified into in-situ (on-site) and ex-situ (off-site) conservation. In-situ conservation involves protecting species in their natural habitats. Examples include sacred groves, biodiversity hotspots, national parks, wildlife sanctuaries, and biosphere reserves. Ex-situ conservation involves the protection and maintenance of threatened species outside their natural habitats. Examples include botanical gardens, zoological parks, seed banks, and cryopreservation. Cryopreservation