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Biodiversity and its Conservation MCQs for NEET — Botany Questions with Answers

Practice free Biodiversity and its Conservation (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

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The last twenty years or so have witnessed the disappearance of at least

A. 27 species B. 40 species C. 12 species D. 7 species

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Explanation

15.1 Biodiversity

Page number-263

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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Which of the following is not correct regarding vulnerability data of different groups?

A. Birds-12 per cent B. Mammals- 23 per cent C. Amphibians- 27 per cent D. Gymnosperms- 31 per cent

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Explanation

15.1 Biodiversity

Page number-264

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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Fossil records suggest that

A. Large scale of loss of species have happened earlier even before humans appeared on Earth B. Large scale of loss of species have happened earlier within 1000 years of human evolution C. Large scale of loss of species have happened earlier just after humans appeared on Earth D. Large scale of loss of species have happened within 100 years of human evolution.

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Explanation

15.1 Biodiversity

Page number-264

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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Which of the following mass extinction is going on

A. 5th B. 6th C. 4th D. 7th

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Explanation

15.1 Biodiversity

Page number-264

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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More than …a…..was the time period during which …b….mass extinction has taken place

A. a- more than three billion years B. a- more than 4.5 billion years C. b- six extinctions D. Both A and C

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Explanation

15.1 Biodiversity

Page number-264

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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Sixth Extinction presently in progress is different from the previous episodes by some reasons except

A. Difference in the rates B. Current rate is 100-1000 times faster than previous episodes C. Human intrusions D. Extinction of special bird species

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Explanation

15.1 Biodiversity

Page number-264

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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Which of the following can be an alarming consequence of sixth extinction?

A. Nearly half of all the species on Earth can be wiped out within the next 100 years B. Nearly one fourth of all the species on Earth can be wiped out within 200 years C. Nearly one eighth of all the species on Earth can be wiped out within 100 years D. Nearly one third of all the species on Earth can be wiped out within 200 years

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Explanation

15.1 Biodiversity

Page number-264

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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Which of the following is not a result of loss of biodiversity?

A. Decline in plant production B. Lowered resistance to environmental perturbations such as drought C. Increased variability in certain ecosystem processes such as Plant Productivity D. Decreased variability in certain ecosystem processes such as pest and disease cycle

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Explanation

15.1 Biodiversity

Page number-264

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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Which of the following is not a part of Evil Quartet?

A. Habitat loss and Fragmentation B. Dosage compensation C. Alien Species Invasions D. Co-extinctions

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Explanation

15.1 Biodiversity

Page number-264

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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The most important cause driving animals and plants to extinction in the Evil Quartet is

A. Habitat loss and Fragmentation B. Over-Exploitation C. Alien Species Invasions D. Co-extinctions

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Explanation

15.1 Biodiversity

Page number-264

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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