Q. No.Which of the following links ecology to population genetics and evolution?
1.
Organismic ecology
2.
Population ecology
3.
Ecosystem ecology
4.
Biome ecology
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Under a particular set of selection pressures, organisms evolve towards the most efficient:
| 1. | Thermoregulation | 2. | Water conservation |
| 3. | Respiration | 4. | Reproduction strategy |
The invasive prickly pear cactus in Australia was brought under control with the help of:
| 1. | Snail | 2. | Moth |
| 3. | Ladybug | 4. | Fungus |
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When the feeding efficiency of one species is reduced due to the inhibitory presence of the other species, even if resources are abundant, it is called:
| 1. | Interference competition | 2. | Exploitative competition |
| 3. | Amensalism | 4. | Predation |
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Which of the following is not usually an adaptation for a parasitic mode of life?
| 1. | Loss of unnecessary sense organs |
| 2. | Presence of adhesive organs or suckers |
| 3. | Loss of the digestive system |
| 4. | Low reproductive capacity |
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Flowers and their insect pollinators must undergo co-evolution because:
| 1. | Without pollinators plants may get extinct |
| 2. | Plants have to reward the pollinators |
| 3. | The relationship must be safeguarded against cheaters |
| 4. | Insects are the major pollinators of plants |
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The relationship between cattle egret and grazing cattle can be best described as:
| 1. | Mutualism | 2. | Commensalism |
| 3. | Parasitism | 4. | Competition |
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Biosphere is:
| 1. | A component in the ecosystem |
| 2. | Composed of the plants present in the soil |
| 3. | Life in the outer space |
| 4. | Composed of all living organisms present on earth which interact with the physical environment |
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What will happen to a well-growing herbaceous plant in the forest if it is transplanted outside the forest in a park?
| 1. | It will grow normally |
| 2. | It will grow well because it is planted in the same locality |
| 3. | It may not survive because of changes in its microclimate |
| 4. | It grows very well because the plant gets more sunlight |
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