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Question

Which of the following statements regarding the estimates of number of species found on earth is not correct?
  1. Total number of species present on earth are considered to be about 7 million as estimated by Robert May.
  2. Insects constitute more than 70% of all the animal species.
  3. Plants constitute more than 70% of all the species recorded, whereas animals constitute less than 22% of the total number of species.
  4. None of these.

A
Total number of species present on earth are considered to be about 7 million as estimated by Robert May.
B
Plants constitute more than 70% of all the species recorded, whereas animals constitute less than 22% of the total number of species.
C
Insects constitute more than 70% of all the animal species.
D
None of these.
Solution
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Animals constitute more than 70% of all the species recorded whereas plants constitute around 22% of total number of species.

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Similar Questions
Q1
Read the following statements and state whether they are true (T) or false (F).

(I) According to Robert May, the total number of different species on earth is around 5 million
(II) The currently available records on the identified species tell us that more than 70% of all the recorded species are animals.
(III) The most species-rich taxonomic group among animals is class Insecta

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Q2
Assertion (A): According to Robert May’s estimate, only about 22% of the total number of existing species have been recorded so far.

Reason (R): More than 1,00,000 plant species are yet to be discovered in India
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Q3
Flowering species of plants constitute more than 90% of all land plants.
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Q4

The approximate estimated number of plant and animal species present on earth is _____.


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Q5
Which of the following statements regarding the estimates of number of species found on earth is not correct?
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