Q. No.Consider the two statements:
I. Ex situ conservation is rarely enough to save a species from extinction.
II. It is to be used as a last resort, or as a supplement to in situ conservation
1. Both I and II are correct and II explains I.
2. Both I and II are correct but II does not explain I.
3. Both I and II are incorrect.
4. Only I is correct.
I. Ex situ conservation is rarely enough to save a species from extinction.
II. It is to be used as a last resort, or as a supplement to in situ conservation
2. Both I and II are correct but II does not explain I.
3. Both I and II are incorrect.
4. Only I is correct.
Consider the two statements:
I. Biological control by an introduced control can affect biodiversity.
II. An introduced control does not always target only the intended pest species; it can also target native species.
1. Both I and II are correct and II explains I.
2. Both I and II are correct but II does not explain I.
3. I is correct but II is incorrect.
4. Both I and II are incorrect.
Organisms that are least likely to experience extinction over the long term are most likely to be found in:
| 1. | areas inhabited by humans | 2. | very stable habitats |
| 3. | desert | 4. | savanna |
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Extinction of species has been always there on the earth but the current extinction is of more concern because:
| 1. | more animals are getting extinct |
| 2. | it is caused by alien species introductions |
| 3. | rate of extinction is much higher than previous extinctions |
| 4. | it is primarily affecting the plant diversity |
Which of the following recently extinct animals was one of the largest carnivorous marsupials?
| 1. | Quagga | 2. | Thylacine |
| 3. | Steller’s sea cow | 4. | Dodo |
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Ramsar Convention provides the framework for national action and international cooperation for the conservation of:
| 1. | Alpine forests | 2. | Wetlands |
| 3. | Deserts | 4. | Polar regions |
Exploring molecular, genetic and species-level diversity for products of economic importance is called as:
| 1. | Molecular pharming | 2. | rDNA technology |
| 3. | Bioprospecting | 4. | Bioharvesting |
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We all know that water hyacinth is an invasive plant that has caused havoc in many water bodies in our country. But it has some usefulness as well. This includes:
I. Substrate for biogas production
II. Bio cleaning of industrial waters
III. Source of effective antipyretic
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
The most effective biologic control of insects is achieved by:
| 1. | insectivorous birds | 2. | biocides |
| 3. | parasitoid wasps | 4. | parasitic nematodes |
Which of the following is a biocide that was first to be used on a large scale?
| 1. | DDT | 2. | 2,4-D |
| 3. | Mercury | 4. | Methane |
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