Q. No.The search for previously unknown compounds in organisms that have never been used in traditional medicine is known as:
1.
Biopiracy
2.
Bioprospecting
3.
Molecular pharming
4.
Bioremediation
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What percentage of total oxygen in the earth’s atmosphere is produced by Amazon rainforest through photosynthesis?
| 1. | 50 | 2. | 40 |
| 3. | 30 | 4. | 20 |
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Extinction of Stellar’s sea cow and passenger pigeon was due to:
| 1. | Habitat loss and fragmentation | 2. | Over exploitation |
| 3. | Invasion of alien species | 4. | Co-extinctions |
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Loss of biodiversity may lead to all except:
1. decline in plant production
2. increased resistance to environmental perturbance
3. increased variability in water use
4. increased variability in pest and disease cycle
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Which group, amongst the following, has the maximum percentage of species facing threat of extinction?
| 1. | Amphibians | 2. | Birds |
| 3. | Mammals | 4. | Gymnosperms |
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Which of the following species of tiger has not gone extinct?
| 1. | Bali | 2. | Javan |
| 3. | Caspian | 4. | Siberian |
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Which of the following is not a reason that accounts for greater biodiversity of tropics?
1. availability of more solar energy
2. more niche specialization
3. more time for species diversification
4. large seasonal variations in environmental factors
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Although, India has only 2.4 % of world’s area, its share of global species diversity is about:
| 1. | 3% | 2. | 5% |
| 3. | 8% | 4. | 11% |
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Approximately, what number of species have been identified, named and studied?
| 1. | 1.0 million | 2. | 1.5 million |
| 3. | 1.7 million | 4. | 2.0 million |
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