Biodiversity and conservation strategies – UGC NET Question

Statements B, C and D are correct descriptions of biodiversity conservation concepts. Statement B identifies in-situ conservation through national parks and sanctuaries, C explains ex-situ conservation through gene banks and botanical gardens and D notes that biodiversity loss undermines ecosystem stability and livelihoods. Statement A is incorrect because biodiversity covers the diversity of genes, species and ecosystems, not only animals. Thus the correct combination is the one that includes B, C and D only.

Option A:
Option A is incorrect because it includes B and C but leaves out D. While B and C are correct, D is also a true statement since biodiversity loss clearly affects ecosystem services and human well-being. By omitting a correct statement, this option fails to capture the full set of correct statements.

Option B:
Option B is correct because it brings together all three correct statements B, C and D and excludes the incorrect statement A. It recognises both in-situ and ex-situ approaches and the link between biodiversity and ecosystem stability. Hence this combination matches the conceptual understanding required in the unit.

Option C:
Option C is incorrect because it includes statement A along with B and C. Statement A narrows biodiversity to animals only, ignoring plants, microorganisms and ecosystem diversity, which is conceptually wrong. Presence of this incorrect statement makes the whole combination unacceptable.

Option D:
Option D is incorrect because it asserts that all four statements A, B, C and D are correct. Since A is an incorrect definition of biodiversity, selecting all four means accepting a wrong idea. A correct option must exclude statement A while retaining B, C and D.