Select the examples of ex-situ conservation:
(A) Zoological parks
(B) Sanctuaries
(C) Seed banks
(D) Cryopreservation of gametes
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A), (C) and (D) only
Ex situ conservation means “off-site” conservation: the plant, the animal or its gametes are kept away from the natural habitat. In situ conservation protects the species where it lives.
(A) Zoological parks — Correct. Animals in a zoo are kept outside their natural habitat and given special care.
(B) Sanctuaries — Incorrect. A wildlife sanctuary protects animals inside their own natural habitat. Like national parks and biosphere reserves, it is in situ conservation.
(C) Seed banks — Correct. Seeds of many strains of crop plants are kept for long periods in a seed bank, far from the fields where the plants grow.
(D) Cryopreservation of gametes — Correct. Gametes of threatened species are kept at very low temperature and stay viable and fertile for a long time.
NCERT Extract:
How Do We Conserve Biodiversity? – …
