Chapter 13: Biodiversity and Conservation MCQs | biology Class 12 CBSE

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Chapter 13: Biodiversity and Conservation MCQs | biology Class 12 CBSE | ByteNotes.in

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Question 1

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The term 'biodiversity' was popularised by which scientist?

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Question 2

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According to IUCN (2004), the total number of plant and animal species described so far is approximately:

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Question 3

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Robert May's estimate for global species diversity is approximately:

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Question 4

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Among animals, which taxonomic group makes up more than 70% of total animal species on Earth?

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Question 5

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India accounts for what percentage of the world's total recorded species diversity?

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Question 6

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The species-area relationship on a logarithmic scale is represented by the equation:

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Question 7

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For smaller regions, the value of Z (regression coefficient) in the species-area relationship lies in the range of:

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Question 8

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Which of the following regions has the greatest biodiversity on Earth?

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Question 9

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The latitudinal gradient in biodiversity indicates that species diversity:

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Question 10

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Which scientist observed the species-area relationship during explorations in South American jungles?

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Question 11

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The 'rivet popper hypothesis' for explaining the importance of biodiversity was given by:

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Question 12

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Introduction of Nile perch into Lake Victoria led to the extinction of how many species of cichlid fish?

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Question 13

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Which of the following is NOT an invasive alien weed species causing environmental damage in India?

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Question 14

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According to IUCN Red List (2004), how many species became extinct in the last 500 years?

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Question 15

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Current species extinction rates are estimated to be how many times faster than pre-human times?

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Question 16

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What percentage of the world's total atmospheric oxygen does the Amazon forest produce through photosynthesis?

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Question 17

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How many biodiversity hotspots have been identified globally?

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Question 18

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Strict protection of all biodiversity hotspots could reduce ongoing mass extinctions by approximately:

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Question 19

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India currently has how many biosphere reserves?

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Question 20

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Sacred groves in Meghalaya serve primarily as:

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Chapter 13: Biodiversity and Conservation | MCQs

The term 'biodiversity' was popularised by which scientist?

According to IUCN (2004), the total number of plant and animal species described so far is approximately:

Robert May's estimate for global species diversity is approximately:

Among animals, which taxonomic group makes up more than 70% of total animal species on Earth?

India accounts for what percentage of the world's total recorded species diversity?

The species-area relationship on a logarithmic scale is represented by the equation:

For smaller regions, the value of Z (regression coefficient) in the species-area relationship lies in the range of:

Which of the following regions has the greatest biodiversity on Earth?

The latitudinal gradient in biodiversity indicates that species diversity:

Which scientist observed the species-area relationship during explorations in South American jungles?

The 'rivet popper hypothesis' for explaining the importance of biodiversity was given by:

Introduction of Nile perch into Lake Victoria led to the extinction of how many species of cichlid fish?

Which of the following is NOT an invasive alien weed species causing environmental damage in India?

According to IUCN Red List (2004), how many species became extinct in the last 500 years?

Current species extinction rates are estimated to be how many times faster than pre-human times?

What percentage of the world's total atmospheric oxygen does the Amazon forest produce through photosynthesis?

How many biodiversity hotspots have been identified globally?

Strict protection of all biodiversity hotspots could reduce ongoing mass extinctions by approximately:

India currently has how many biosphere reserves?

Sacred groves in Meghalaya serve primarily as:

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