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Q. No.The equation of Verhulst-Pearl logisitic growth model is
\(\dfrac {dN}{dt}=rN \left[\dfrac {K-N}{K}\right ]\)
From this equation, K indicates:
1. Biotic potential
2. Carrying capacity
3. Population density
4. Intrinsic rate of natural increase
\(\dfrac {dN}{dt}=rN \left[\dfrac {K-N}{K}\right ]\)
From this equation, K indicates:
1. Biotic potential
2. Carrying capacity
3. Population density
4. Intrinsic rate of natural increase
Subtopic: Population: Logistic Growth Model |
80%
From NCERT
NEET - 2024
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
| Statement I: | Gause's competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely. |
| Statement II: | According to Gause's principle, during competition, the inferior will be eliminated. This may be true if resources are limiting. |
In the light of the above statements, choose the most appropriate answer from the options given below:
| 1. | Both Statement I and Statement II are False. |
| 2. | Statement I is True but Statement II is False. |
| 3. | Statement I is False but Statement II is True. |
| 4. | Both Statement I and Statement II are True. |
Subtopic: Population Interactions: Commensalism, Protocooperation & Mutualism |
55%
From NCERT
NEET - 2024
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Given below are two statements :
In light of the above statements, choose the correct answer from the options given below :
1. Both Statement I and Statement II are True
2. Both Statement I and Statement II are False
3. Statement I is True but Statement II is False
4. Statement I is False but Statement II is True
| Statement I: | When the fitness of one species is significantly lower in the presence of another species, the process is defined as competition. |
| Statement II: | When fungi remain in association with living plants or animals, they are called saprophytes. |
1. Both Statement I and Statement II are True
2. Both Statement I and Statement II are False
3. Statement I is True but Statement II is False
4. Statement I is False but Statement II is True
Subtopic: Population Interactions: Competition | Population Interactions: Commensalism, Protocooperation & Mutualism |
66%
From NCERT
NEET - 2024
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The population growing in a habitat with limited resources will show:
Choose the correct answer from the options given below:
1. A and B only
2. C and D only
3. A and D only
4. B and C only
| A. | Lag phase, followed by phases of acceleration and deceleration and finally an asymptote. |
| B. | The ability to realise its innate potential to grow in number and reach enormous densities in short time. |
| C. | Exponential growth |
| D. | Logistic growth |
1. A and B only
2. C and D only
3. A and D only
4. B and C only
Subtopic: Population: Logistic Growth Model |
86%
From NCERT
NEET - 2024
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Which of the following is not an example of mutualism?
1. Lichens
2. Mycorrhizae
3. An orchid on a branch of mango plant
4. The wasp pollinating fig inflorescence
1. Lichens
2. Mycorrhizae
3. An orchid on a branch of mango plant
4. The wasp pollinating fig inflorescence
Subtopic: Population Interactions: Commensalism, Protocooperation & Mutualism |
85%
From NCERT
NEET - 2024
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Given below are two statements: One is labelled as
Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the correct answer from the options given below:
Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | The interaction, in which one species benefits and the other is neither harmed nor benefitted, is known as commensalism. |
| Reason (R): | Egrets always forage close to where the cattles are grazing, otherwise it is difficult for the egrets to find the insect and catch. |
| 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. | (A) is False but (R) is True. |
Subtopic: Population Interactions: Commensalism, Protocooperation & Mutualism |
50%
From NCERT
NEET - 2024
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Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the correct answer from the options given below:
| Assertion (A): | Connell's elegant field experiment showed that on the rocky sea, the larger and competitively superior barnacles dominate the intertidal area and exclude the smaller barnacles from that area. |
| Reason (R): | Generally, herbivores and plants appear to be more adversely affected by competition than carnivores. |
| 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. | (A) is False but (R) is True. |
Subtopic: Population Interactions: Competition |
76%
From NCERT
NEET - 2024
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Match List I with List II
Choose the correct answer from the options given below :
| List I (Interaction) |
List II (Species A and B) |
||
| A. | Mutualism | I. | +(A), O(B) |
| B. | Commensalism | II. | –(A), O(B) |
| C. | Amensalism | III. | +(A), –(B) |
| D. | Parasitism | IV | +(A), +(B) |
Choose the correct answer from the options given below :
| Options: | A | B | C | D |
| 1. | III | I | IV | II |
| 2. | IV | II | I | II |
| 3. | IV | I | II | III |
| 4. | IV | III | I | II |
Subtopic: Population Interactions: Competition | Population Interactions: Predation | Population Interactions: Parasitism | Population Interactions: Commensalism, Protocooperation & Mutualism |
88%
From NCERT
NEET - 2023
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Given below are two statements:
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
| Statement I: | Gause's 'Competitive Exclusion Principle' states that two closely related species competing for the same resources cannot co-exist indefinitely and competitively inferior one will be eliminated eventually. |
| Statement II: | In general, carnivores are more adversely affected by competition than herbivores. |
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic: Population Interactions: Competition |
63%
From NCERT
NEET - 2023
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Match List I with List II
Choose the correct answer from the options given below:
| List I (Interacting species) | List II (Name of Interaction) | ||
| A. | A Leopard and a Lion in a Forest/grassland | I. | Competition |
| B. | A Cuckoo laying an egg in a Crow's nest | II. | Brood parasitism |
| C. | Fungi and root of a higher plant mycorrhizae | I. | Mutualism |
| D. | A cattle egret and a Cattle in a field | IV. | Commensalism |
Choose the correct answer from the options given below:
| Options: | A | B | C | D |
| 1. | II | III | I | IV |
| 2. | I | II | III | IV |
| 3. | I | II | IV | III |
| 4. | III | IV | I | II |
Subtopic: Population Interactions: Competition | Population Interactions: Predation | Population Interactions: Parasitism | Population Interactions: Amensalism | Population Interactions: Commensalism, Protocooperation & Mutualism |
80%
From NCERT
NEET - 2023
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