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Q. No.Unlike the exponential growth model, the logistic growth model is considered more realistic for animal populations. What is the key reason for this?
| 1. | Populations always grow exponentially without limitations. |
| 2. | Logistic growth only applies to large mammals, not smaller organisms. |
| 3. | The model assumes species interactions do not affect population size. |
| 4. | Resources are finite and become limiting over time, leading to carrying capacity constraints. |
Subtopic: Â Population: Logistic Growth Model |
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Level 1: 80%+
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In nature, a given habitat has enough resources to support a maximum possible number, beyond which no further growth is possible. This limit is known as
| 1. | Environmental resistance |
| 2. | Intrinsic rate of natural increase |
| 3. | Carrying capacity |
| 4. | Exponential growth |
Subtopic: Â Population: Logistic Growth Model |
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Match List-I with List-II.
Choose the correct answer from the options given below:
| List-I | List-II | ||
| A. | Logistic growth | I. | Unlimited resource availability condition |
| B. | Exponential growth | II. | Limited resource availability condition |
| C. | Expanding age pyramid | III. | The percent individuals of pre-reproductive age is largest followed by reproductive and post reproductive age groups |
| D. | Stable age pyramid | IV. | The percent individuals of pre-reproductives and reproductive age group are same |
| Options: | A | B | C | D |
| 1. | II | IV | III | I |
| 2. | II | I | III | IV |
| 3. | II | III | I | IV |
| 4. | II | IV | I | III |
Subtopic: Â Population: Exponential Growth Model |Â Population: Logistic Growth Model |Â Age Pyramid |
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Level 1: 80%+
NEET - 2023
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Subtopic: Â Population: Logistic Growth Model |
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Change in population size equation with prolonged exponential phase can be converted into the logistic growth equation by multiplying it with
1.
2.
3.
4.
Subtopic: Â Population: Logistic Growth Model |
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What do 'a' and 'b' represent in the following population growth curve?
| 1. | 'a' represents exponential growth when responses are not limiting the growth; and 'b' represents logistic growth when responses are limiting the growth. |
| 2. | 'a' represents logistic growth when responses are not limiting the growth; 'b' represents exponential growth when responses are limiting the growth. |
| 3. | 'a' represents carrying capacity and 'b' shows logistic growth when responses are limiting the growth. |
| 4. | 'a' represents exponential growth when responses are not limiting the growth and 'b' shows carrying capacity. |
Subtopic: Â Population: Exponential Growth Model |Â Population: Logistic Growth Model |
 89%
Level 1: 80%+
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: Â Population: Logistic Growth Model |
 88%
Level 1: 80%+
NEET - 2024
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Consider the given two statements:
| Assertion (A): | The logistic growth model is considered a more realistic model for most animal populations in natural environmental conditions. |
| Reason (R): | Most animals are capable of showing active locomotion. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | Both (A) and (R) are True and (R) does not correctly explain (A) |
| 3. | (A) is True, (R) is False |
| 4. | (A) is False, (R) is False |
Subtopic: Â Population: Logistic Growth Model |
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Level 1: 80%+
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Choose the only scenario that cannot occur under the logistic growth model (Verhulst– Pearl).
| 1. | Growth rate is maximum when population is far below carrying capacity. |
| 2. | Growth rate declines as population size approaches carrying capacity. |
| 3. | Population stabilises when environmental resistance equals biotic potential. |
| 4. | Population overshoots carrying capacity permanently and continues to grow exponentially. |
Subtopic: Â Population: Logistic Growth Model |
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Level 2: 60%+
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When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1 - N/K)
| 1. | when death rate is greater than birth rate |
| 2. | When N/K is exactly one |
| 3. | When N nears the carrying capacity of the habitat |
| 4. | When N/K equals zero |
Subtopic: Â Population: Logistic Growth Model |
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