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Q. No.| 1. | It can vary from small sized pond to large sized sea |
| 2. | It may be anthropogenic in origin |
| 3. | It may be temporary or Permanent |
| 4. | It involves the function of flow of energy but not recycling of nutrients |
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 456847
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 456847
1. lack of niche specialisation.
2. higher annual rainfall.
3. availability of fruits throughout the year.
4. temperature conducive for their breeding.
| 1. | \(x\left(\mathrm{kcal}~ \mathrm{m}^{-2}\right) y r^{-1}\) |
| 2. | \(10 x\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\) |
| 3. | \(\dfrac{100 x}{3 x}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) \mathrm{yr}^{-1}\) |
| 4. | \(\dfrac{x}{10}\left(\mathrm{kcal} ~\mathrm{m}^{-2}\right) y r^{-1}\) |
| A: | Detrivores perform fragmentation. |
| B: | The humus is further degraded by some microbes during mineralization. |
| C: | Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching. |
| D: | The detritus food chain begins with living organisms. |
| E: | Earthworms break down detritus into smaller particles by a process called catabolism. |
Choose the correct answer from the options given below:
| 1. | D, E, A only | 2. | A, B, C only |
| 3. | B, C, D only | 4. | C, D, E only |
Which of the following is not correct regarding the decomposition of wastes?
| (a) | Low temperature inhibits decomposition |
| (b) | Warm and moist environment favors the process |
| (c) | The process is anaerobic |
| (d) | It is slower if detritus is rich in proteins and carbohydrates |
| (e) | Detritus is degraded into simpler inorganic substance by fungal and bacterial enzymes |
Choose the correct answer from the options given below:
| 1. | (b) and (c) only | 2. | (c), (a) and (d) only |
| 3. | (c) and (d) only | 4. | (c), (d) and (e) only |
| Statement I: | In an ecosystem, there is unidirectional flow of energy of sun from producers to consumers. |
| Statement II: | Ecosystems are exempted from 2nd law of thermodynamics. |
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 |
Identify the likely organisms (a), (b), (c), and (d) in the food web shown below:
|
(a) |
(b) |
(c) |
(d) |
|
|
1. |
Dog |
Squirrel |
Bat |
Deer |
|
2. |
Rat |
Dog |
Tortoise |
Crow |
|
3. |
Squirrel |
Cat |
Rat |
Pigeon |
|
4. |
Deer |
Rabbit |
Frog |
Rat |
| 1. | Saprophytes are not given any place in ecological pyramids |
| 2. | It assumes a simple food chain that, almost, never exists in nature |
| 3. | It accommodates a food web |
| 4. | It does not take into account the same species belonging to two or more trophic levels |
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 |
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 the sea and Whale on top-level TC |
| 3. | Level PP is pipal trees and the level SC is sheep |
| 4. | Level PC is rats and level SC is cats |
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Q. No.
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