According to Robert May,the global species diversity is about:

  • A
    $7$ million
  • B
    $1.5$ million
  • C
    $20$ million
  • D
    $50$ million

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Which group of animals exhibits the highest species richness?

How many species have been identified till $2004$ in the world?

Given below are pie diagrams $A, B$ and $C$ related to the proportionate number of species of major taxa of invertebrates,vertebrates,and plants,respectively. Critically study and fill in the blanks $I, II, III$ and $IV$.

In India,nearly $45,000$ species of . . . . . . and twice as many of . . . . . . have been recorded.

According to Robert May,the total global species diversity is about:

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