Tiêu đề 35.BIODIVERSITY.pdf ✅

NCERT LINE BY LINE BIOLOGY- 9494065095 CHAPTER 13 BIODIVERSITY Exercise 1 : NCERT Based Topic-wise MCQs 13.1 BIODIVERSITY 1. Biodiversity describes the study of diversity (a) below species level. NCERT Page-258 / N-217 (b) at species level. (c) at community level. (d) at all levels of biological organization. 2. IUCN stands for NCERT Page-259 / N-217 (a) Indian Union for Conservation of Nature (b) International Union for Conservation of Nature (c) Indian Union for Chemical Nomenclature (d) International Union for Conservation of Nutrients 3. More than 70% of all the species recorded so far, are NCERT Page-260 / N-218 (a) insects (c) animals (b) plants (d) invertebrates 4. The highest number of species in the world is represented by NCERT Page-260 / N-218 (a) algae (c) fungi (b) lichens (d) mosses 5. India's share in global species diversity is around (a) 8% NCERT Page-261 / N-219 (c) 17% (b) 14% (d) 2.4%


19.Which vertebrate group is more vulnerable to extinction? (a) Birds NCERT Page-264 / N-222 (c) Mammals (b) Amphibians (d) Fishes 20.The 'Evil Quartet' of biodiversity loss, does not include NCERT Page-264 / N-222 (a) habitat loss (c) over-exploitation (b) introduction (b) introduction of alien species (d) hunting 21.The taxa believed likely to join the endangered category in near future is called (a) Rare (c) Vulnerable (b) Extinct (d) Living fossil 22.Which of the following is not currently a major cause of the global reduction in biodiversity? (a) Overexploitation NCERT Page-264 / N-222 (b) Global warming (c) Habitat destruction (d) Introduction of foreign predators and disease 23.Amazon rain forest, called the 'Lungs of the Planet', contribute following percentage of oxygen by photosynthesis, to earth atmosphere (a) 20% NCERT Page-264 / N-219 (b) 35% (c) 42% (d) 50% 13.2 BIODIVERSITY CONSERVATION 24.Which of the following characteristics would cause a country to be considered a high- priority region for conservation efforts? (a) A high degree of endemism NCERT Page-266 / N-224 (b) Having low species richness (c) Having little natural habitat remaining (d) All of the above