Biodiversity loss is now one of the world’s most pressing crisis. The primary reason for this is that:
1. | we cannot do anything about it |
2. | we are not responsible for this loss |
3. | we still do not know its entire extent |
4. | it is only affecting the developing countries |
On a logarithmic scale, the species-area relationship turns out to be a:
1. | Straight line | 2. | Rectangular hyperbola |
3. | Bell shaped | 4. | U shaped |
Assertion (A): | Species diversity contributes to the well-being of an ecosystem. |
Reason (R): | Rich biodiversity contributes to higher productivity of an ecosystem. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
The rivet popper hypothesis was given by:
1. | Humboldt | 2. | Ehlrich |
3. | Tilman | 4. | Tansley |
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 |
Biodiversity should be conserved as it plays a major role in many ecosystem services that nature provides. Such an argument is called:
1. | broadly utilitarian | 2. | narrowly utilitarian |
3. | ethical | 4. | moral |
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 |