List six advantages of "ex-situ" approach to conservation of biodiversity.

Explanation

Ex-situ conservation - It is a conservation of selected threatened plant and animal species in places outside their natural habital. Population is conserved under simulated conditions that closelly resemble their natural habit. The gametes of endangered species can be preserved by methods such as cryo-preservation.
Whenever required, gametes can be fertilised invitro and transfer to the suruogate to produce endangered animals. Cryo-preserved plant material whenever required can be propagated through tissue culture methods. Seeds of rare varieties can be cryo-preserved. The commonly used ex-situ conservation methods are sperm bank/seed bank, cryo-preservation, invitro fertilization, tissue culture, botanical gardens, zoological parks, wild life safari.