According to extreme estimates, which say that there is 20 to 50 million global species diversity is based on

(1) Species richness of insects

(2) Species richness of Arthropods

(3) Species evenness of insects

(4) Species evenness of Arthropods

Subtopic:  Magnitude of Biodiversity |
 81%
From NCERT
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According to Robert May, the global species diversity is

(1) About 20 billion

(2) About 7 billion

(3) About 7 million

(4) About 20 million

Subtopic:  Magnitude of Biodiversity |
 69%
From NCERT
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Which of the following statement is wrong about species diversity?

1. More than 70 per cent of all the species recorded are animals

2. Algae and fungi comprise no more than 22 per cent of the total species diversity

3. Plants include algae, fungi, bryophyte, gymnosperms and angiosperms comprise no more than 22 per cent of the total species diversity

4. 70 per cent of the total animals come from insecta

Subtopic:  Magnitude of Biodiversity |
 70%
From NCERT
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Among animals, which of the following is the most species-rich taxonomic group?

(1) Insects

(2) Molluscs

(3) Crustacean

(4) Other animal groups

Subtopic:  Magnitude of Biodiversity |
 97%
From NCERT
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Which of the following statement is true about biodiversity of Earth?

(1) The number of fungi species in this world is more than the combined total of the species of fishes, amphibians, reptiles and mammals

(2) The number of fungi species is less than combined total of the species of fishes

(3) The number of fungi species is less than combined total of the species of amphibians and reptiles

(4) The number of fungi species is less than combined total of the species of mammals and birds

Subtopic:  Magnitude of Biodiversity |
 87%
From NCERT
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Which of the following organisms are not estimated in terms of diversity?

(1) Prokaryotes

(2) Plants

(3) Fungi

(4) Mosses

Subtopic:  Magnitude of Biodiversity |
 94%
From NCERT
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Prokaryotes have not been estimated in terms of biodiversity. Which of the following reasons does not hold true?

1. Conventional taxonomic methods are not suitable for identifying microbial species

2. Many species are simply not culturable under laboratory conditions

3. Lichens do not allow them to be assessed because of close association

4. Both (1) and (3)

Subtopic:  Magnitude of Biodiversity |
From NCERT
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India has only…….per cent of the world's land area, it's share of the global species diversity is an impressive ……. per cent

(1) 2.4, 12

(2) 2.4, 8.1

(3) 8.1, 12

(4) 8.1, 2.4

Subtopic:  Magnitude of Biodiversity |
 90%
From NCERT
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India is among 12 mega diverse countries of the world because

(1) It bears 2.4 per cent area of the world's land and has a share of 12 per cent of global species diversity

(2) It bears 2.4 per cent area of the world's land has a share of 8.1 per cent of the global species diversity

(3) It has several groups to protect environment which are not in other countries

(4) Government of India is aware of the loss of Biodiversity but other governments are not

Subtopic:  Magnitude of Biodiversity |
 96%
From NCERT
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India holds which of the following Biodiversity data true?

(1) 45000 species of plants

(2) 50000 species of animals

(3) 90000 species of plants

(4) 45000 species of animals

Subtopic:  Magnitude of Biodiversity |
 84%
From NCERT
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