Ecological Diversity

(1) It is more in India compared to Scandinavian countries like Norway

(2) It is less in India comparative to Scandinavian countries like Norway

(3) It is more in Australia comparative to India

(4) Both (1) and (3)

Subtopic:  Introduction & Types |
 73%
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It has taken millions of years of …….to accumulate this rich diversity in nature but we could lose all that wealth in …….if the present rates of species losses continue.

1. Evolution, less than 100 years

2. Evolution, less than two centuries

3. Founders effect, less than two centuries

4. Founders effect, less than one century

Subtopic:  Introduction & Types |
 63%
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The total number of plant and animal species described so far is slightly  more than 1.5 million. This is reported by

1. IUCN- 2004

2. IUN-2006

3. IUCN-2006

4. IUN-2004

Subtopic:  Magnitude of Biodiversity |
 89%
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For many taxonomic groups, species inventories are more complete in

1. Temperate countries

2. Tropical countries

3. Grasslands

4. Both (2) and (3)

Subtopic:  Magnitude of Biodiversity |
 54%
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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%
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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%
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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%
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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%
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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%
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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%
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