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Botany MCQs for NEET — Practice Questions with Answers

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Which of the following loss of rivet will be more crucial for the flight safety?

A. Loss of rivets on the wings B. Loss of rivets on the seats C. Loss of rivets on Windows inside the plane D. Both A and C

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Explanation

15.1 Biodiversity

Page number-263

15.1.3 The Importance of Species Diversity to the Ecosystem

Biodiversity and Conservation

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Which of the following is not correct according to analogy given by Paul Ehrlich?

A. Loss of the key species that drive the major ecosystem functions is a more serious threat to flight safety than loss of other less important species B. Proper functioning of ecosystem is initially may not be affected by species loss C. Over a period of time, if the species loss is continuous, the ecosystem gets affected after a time D. Even the loss of not much significant species lead to crtical damage to ecosystem.

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Explanation

15.1 Biodiversity

Page number-263

15.1.3 The Importance of Species Diversity to the Ecosystem

Biodiversity and Conservation

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Which of the following data is not according to IUCN Red List (2004)?

A. Vertebrates-338 B. Invertebrates-359 C. Plants-87 D. Bacteria-104

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Explanation

15.1 Biodiversity

Page number-263

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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The extinctions of 784 species recorded in IUCN Red List (2004) happened over

A. Last 240 years B. Last 500 years C. Last 300 years D. Last 400 years

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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 wrongly matched recent extinction?

A. Dodo-Mauritius B. Quagga-Africa C. Thylacine-Australia D. Steller's Sea Cow- Stanford

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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 recently extincted subspecies of tiger?

A. Bali B. Javan C. Caspian D. Sumata

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Explanation

15.1 Biodiversity

Page number-263

15.1.4 Loss of Biodiversity

Biodiversity and Conservation

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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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