NEETBotanyBiodiversity and its Conservation
Read the following statements regarding biodiversity loss: A. The IUCN Red List (2004) documents the extinction of 784 species in the last 500 years. B. Currently, more than 15,500 species world-wide are facing the threat of extinction. C. Among vertebrates, amphibians appear to be more vulnerable to extinction. D. The current rate of species extinction is estimated to be 100 to 1,000 times faster than in pre-human t
Options
- AOne
- BTwo
- CFour
- DThree
Correct answer
C. Four
Step-by-step solution
Statement A is correct: According to NCERT, the IUCN Red List (2004) documents the extinction of 784 species (including 338 vertebrates, 359 invertebrates and 87 plants) in the last 500 years. Statement B is correct: Currently, more than 15,500 species world-wide are facing the threat of extinction. Statement C is correct: 32 per cent of all amphibian species face the threat of extinction, making them more vulnerable compared to birds (12 per cent) and mammals (23 per cent). Statement D is correct: Ecologists estim