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Q. No.Match List - I with List - II
List - I
List - II
(A)
Hydrarch succession
(I)
Gradual change in the species composition
(B)
Xerarch succession
(II)
Faster and climax reached quickly
(C)
Ecological succession
(III)
Lichens to mesic conditions
(D)
Secondary succession
(IV)
Phytoplankton to mesic conditions
Choose the correct answer from the options given below:
Options:
(A)
(B)
(C)
(D)
1.
IV
II
III
I
2.
III
I
IV
II
3.
I
IV
II
III
4.
IV
III
I
II
Subtopic: Ecological Succession (OLD NCERT) |
72%
From NCERT
NEET - 2023
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The amount of nutrients such as carbon, nitrogen, potassium and calcium present in the soil at any given time is referred to as:
| 1. | Standing state | 2. | Standing crop |
| 3. | Humus | 4. | Detritus |
Subtopic: Mineral Cycling & Ecosystem Services (OLD NCERT) |
65%
From NCERT
NEET - 2023
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Given below are two statements:
| Assertion (A): | Lichens are the first organisms to colonise bare rocks hence are ecologically important |
| Reason (R): | Lichens are symbiotic association between two heterotrophs |
| 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. |
Subtopic: Ecological Succession (OLD NCERT) |
64%
From NCERT
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Given below are two statements:
| Assertion (A): | No energy that is trapped into an organism remains in it for ever. |
| Reason (R): | The energy trapped by producers is either passed on to a consumer or the organism dies. |
| 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. |
Subtopic: Energy Flow |
83%
From NCERT
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Given below are two statements:
| Assertion (A): | Animals are called consumers or heterotrophs. |
| Reason (R): | All animals depend on plants directly or indirectly for their food needs. |
| 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. |
Subtopic: Energy Flow |
87%
From NCERT
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Given below are two statements:
| Assertion (A): | The base of a pyramid is broad and it narrows down at the apex |
| Reason (R): | Shape of pyramid may vary with the food or energy relationship between organisms at different trophic level. |
| 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. |
Subtopic: Ecological Pyramids |
From NCERT
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Given below are two statements:
| Assertion (A): | The pyramid of biomass in sea is generally inverted. |
| Reason (R): | The biomass of fishes far exceeds than that of phytoplankton |
| 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. |
Subtopic: Ecological Pyramids |
81%
From NCERT
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Given below are two statements:
| Assertion (A): | Pyramid of energy is always upright, can never be inverted. |
| Reason (R): | When energy flows from a particular trophic level to the next trophic level, some energy is always lost as heat at each step. |
| 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. |
Subtopic: Ecological Pyramids |
91%
From NCERT
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Given below are two statements:
| Assertion (A): | Succession and evolution would have been parallel process. |
| Reason (R): | The present day communities in the world have come to be because of succession that has occurred over millions of years since life started on the earth. |
| 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. |
Subtopic: Ecological Succession (OLD NCERT) |
73%
From NCERT
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Given below are two statements:
| Assertion (A): | The vegetational changes during succession affect food and shelter for various types of animals. |
| Reason (R): | As succession proceeds, the number and types of animals and decomposers also change |
| 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. |
Subtopic: Ecological Succession (OLD NCERT) |
73%
From NCERT
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