- 1(current)
Q. No.Which of the following representations shows the pyramid of numbers in a forest ecosystem?
| 1. | A | 2. | B |
| 3. | C | 4. | D |
Given below is an imaginary pyramid of numbers. What could be one of the possibilities about certain organisms at some of the different levels?
| 1. | Level PC is "insects" and level SC is "small insectivorous birds". |
| 2. | Level PP is "phytoplanktons" in sea and "Whale" on top level TC |
| 3. | Level PP is "pipal trees" and level SC is "sheep". |
| 4. | Level PC is "rats" and level SC is "cats". |
The accompanying figure represents an ecological pyramid. It is
| 1. | Pyramid of numbers in a grassland |
| 2. | Pyramid of biomass in a fallow land |
| 3. | Pyramid of biomass in a lake |
| 4. | Energy pyramid in a spring |
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Which of the following is not used for construction of ecological pyramids
1. Fresh weight
2. Dry weight
3. Number of individuals
4. Rate of energy flow
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If 20 J of energy is trapped at producer level, then how much energy will be available to peacock as food in the following chain?
plant → mice → snake → peacock
1. 0.02 J
2. 0.002 J
3. 0.2 J
4. 0.0002 J
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What type of ecological pyramid would be obtained with the following data?
Secondary consumer : 120 g
Primary consumer : 60 g
Primary producer : 10 g
1. Inverted pyramid of biomass
2. Upright pyramid of biomass
3. Upright pyramid of numbers
4. Pyramid of energy
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Which one of the following statements for pyramid of energy is incorrect, whereas the remaining three are correct?
1. Its base is broad
2. It shows energy content of different trophic level organisms
3. It is inverted in shape
4.It is upright in shape
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In an ecosystem which of the following can never by inverted?
1. pyramid of numbers
2. pyramid of energy
3. pyramid of biomass
4. all can be inverted
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- 1(current)
Q. No.
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