- 1(current)
Q. No.Given below are two statements:
| Statement I: | Pyramid of energy is always upright and is the most efficient. |
| Statement II: | Pyramid of biomass in sea is generally inverted. |
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is correct but Statement II is incorrect.
2. Statement I is incorrect but Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Which of the following statements is not correct?
| 1. | Pyramid of energy is always upright. |
| 2. | Pyramid of numbers in a grassland ecosystem is upright. |
| 3. | Pyramid of biomass in sea is generally inverted. |
| 4. | Pyramid of biomass in sea is generally upright. |
Which of the following statements is incorrect?
| 1. | Biomass decreases from first to fourth trophic level. |
| 2. | Energy content gradually increases from first to fourth trophic level. |
| 3. | Number of individuals decreases from first trophic level to fourth trophic level. |
| 4. | Energy content gradually decreases from first to fourth trophic level. |
Which of the following ecological pyramids is generally inverted?
1. Pyramid of biomass in a sea
2. Pyramid of numbers in grassland
3. Pyramid of energy
4. Pyramid of biomass in a forest
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. Pyramid of energy
3. Upright pyramid of numbers
4. Upright pyramid of biomass
If 20 J of energy is trapped at the producer level, then how much energy will be available to peacocks 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 |
| 1. | It shows the energy content of different trophic-level organisms |
| 2. | It is inverted in shape |
| 3. | It is upright in shape |
| 4. | Its base is broad |
| 1. | Detritus | 2. | Humus |
| 3. | Standing state | 4. | Standing crop |
Which one of the following is not used for the construction of ecological pyramids?
| 1. | Dry weight | 2. | Number of individuals |
| 3. | Rate of energy | 4. | Fresh weight |
- 1(current)
Q. No.
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