Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETBotanyBiodiversity and its Conservation

How many plant and animal species have been described so far according to IUCN (2004)?

Options

  1. A20 to 50 million
  2. B7 million
  3. C1.5 million
  4. D10 million

Correct answer

C. 1.5 million

Step-by-step solution

Since there are published records of all the species discovered and named, we know how many species in all have been recorded so far, but it is not easy to answer the question of how many species there are on earth. According to the International Union for Conservation of Nature and Natural Resources (IUCN) (2004), the total number of plant and animal species described so far is slightly more than 1.5 million, but we have no clear idea of how many species are yet to be discovered and described. Estimates vary widel

Practice Biodiversity and its Conservation on Quantrex Academy →

More from Biodiversity and its Conservation

Match the following. 2019One of the following statements is incorrect with reference to biodiversity. Identify it. 2016One out of the following is not responsible for biodiversity loss. 2015The total number of biodiversity hotspots in the world are 2014Which of the following statements is not true? 2014Newly formed Biosphere Reserve of India (2013) is 2014India is one of the twelve megadiversity countries with of genetic resources of the world. 2013Assertion : Now-a-days, the biodiversity is declining with an accelerated rate. Reason : Exotic species are considered to be a major cause of extinction of species. 2013 Full Biodiversity and its Conservation list All NEET PYQs