Q. No.The given age pyramid represents a:
1.
Fast expanding population
2.
Slowly expanding population
3.
Stable population
4.
Declining population
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The tiger census in our national parks and tiger reserves is often based on:
| 1. | Pug marks | 2. | Cub count |
| 3. | Area allocation | 4. | Collar position |
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If a new habitat is just being colonized, which of the following is most likely to contribute to an increase in the population density?
| 1. | Birth rate | 2. | Death rate |
| 3. | Immigration | 4. | Emigration |
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When population density is plotted against time, the exponential growth curve is:
| 1. | S shaped | 2. | Straight line |
| 3. | J shaped | 4. | Hyperbola |
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In the logistic growth equation given below, the carrying capacity is represented by:
\(\frac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{K}-\mathrm{N}}{\mathrm{K}}\right)\)
| 1. | N | 2. | r |
| 3. | K | 4. | K – N / K |
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Darwinian fitness is represented by:
| 1. | Low r value | 2. | High r value |
| 3. | High K value | 4. | Low K value |
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Which of the following organisms does not breed only once in their life time?
| 1. | Pacific salmon | 2. | Marsupial mice |
| 3. | Birds | 4. | Bamboo |
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As a part of their reproductive strategy, pelagic fishes:
| 1. | Produce a large number of small-sized offspring |
| 2. | Produce a small number of small-sized offspring |
| 3. | Produce a large number of large-sized offspring |
| 4. | Produce a small number of large-sized offspring |
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A population interaction that is detrimental to both species would be:
| 1. | Mutualism | 2. | Competition |
| 3. | Predation | 4. | Amensalism |
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A population interaction where one species is harmed whereas the other is unaffected is called as:
| 1. | Mutualism | 2. | Competition |
| 3. | Predation | 4. | Amensalism |
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