Study the following and pick the correct statements:
(A) A biogeographic region with a significant reservoir of biodiversity that is under threat of
extinction from humans is called a biosphere reserve.
(B) Cryopreservation, in-vitro culture, gene banks, etc., are some methods of ex-situ
conservation.
(C) Species diversity between two adjacent ecosystems is called beta (β) diversity.
(D) Digitalin is obtained from the Foxglove plant.
