Q. No.Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A):
Low temperature and anaerobiosis inhibit decomposition resulting in build-up of organic chemicals.
Reason (R):
Most decomposers are anaerobic psychrophiles.
In the light of the above statements, choose the most appropriate answer from the options given below:
1.
Both (A) and (R) are true and (R) is the correct explanation of (A).
2.
Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.
(A) is true but (R) is false.
4.
Both (A) and (R) are false.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Sometimes the term "detritivore" is used interchangeably with:
| 1. | decomposers | 2. | primary consumers |
| 3. | secondary consumers | 4. | autotrophs |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The minimum requirement for an ecosystem to recycle nutrients present in it would be:
| 1. | producers |
| 2. | producers and decomposers |
| 3. | producers, primary consumers, and decomposers |
| 4. | producers, primary consumers, secondary consumers, and decomposers |
Net primary productivity is the gross primary productivity minus:
| 1. | that which is consumed by herbivores |
| 2. | that which is consumed by the producer in metabolism |
| 3. | secondary productivity |
| 4. | loss due to mortality |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Most organic material is converted to carbon dioxide, which can then be utilized in primary production by:
1. autotrophs
2. secondary consumers
3. herbivores
4. carnivores
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The best way to describe an ecosystem would be that they are:
| 1. | processors of energy and transformers of matter. |
| 2. | processors of matter and transformers of energy. |
| 3. | processors of matter and energy. |
| 4. | transformers of matter but not of energy. |
The amount of carbon dioxide in the atmosphere is:
1. increasing
2. decreasing
3. holding steady
4. fluctuating wildly
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The ecosystem that can survive in the absence of the Sun would be:
| 1. | tropical rainforest | 2. | tundra |
| 3. | benthic ocean | 4. | desert |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
An important feature of the phosphorus cycle is that its reservoir is in:
1. aquifers
2. soil and rocks
3. the atmosphere
4. the sun
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Most organic carbon on Earth is found in:
1. Atmosphere
2. Oceans
3. Biomass
4. Sedimentary rocks
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
© 2024 GoodEd Technologies Pvt. Ltd.