Which of the following given statements are incorrect?
(i) There are many animals that have become extinct in the wild but continue to be maintained in zoological parks.
(ii) Cryopreservation techniques and seed banks area a method of ex situ conservation.
(iii) Endemic species confined to specific region and not found anywhere else.
(iv) In the Earth Summit on Sustainable Development, 190 countries pledged to reduce the current rate of biodiversity loss at global, regional and local levels by 2010.
(v) By using cryopreservation technique, sperms, eggs, animals cells, tissues and embryos can be stored for long period.
(vi) Amazon forest contributes 14% of the total oxygen in the atmosphere on earth.
Text Solution
Verified by ExpertsB
(i) Correct → Some animals are extinct in the wild but survive in zoos (e.g., captive breeding programs).
(ii) Correct → Cryopreservation and seed banks are ex situ conservation methods.
(iii) Correct → Endemic species are restricted to a specific region only.
(iv) Incorrect → The pledge to reduce biodiversity loss by 2010 was made at the Earth Summit (2002, Johannesburg), not exactly as stated.
(v) Correct → Cryopreservation allows long-term storage of biological materials (sperms, eggs, tissues, etc.).
(vi) Incorrect → The Amazon does not contribute 14% of Earth's oxygen; this is a myth. Oxygen is mostly balanced by consumption.
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