- 1(current)
Q. No.All the following are correct about the exponential growth of population except:
| 1. | It is represented by the equation dt/dN = rN |
| 2. | Resources in the habitat are unlimited |
| 3. | The rate of natural increase is represented by “r” |
| 4. | In 1981, the ‘r’ value for human population in India was 0.0205 |
Subtopic: Population: Exponential Growth Model | Population: Logistic Growth Model |
63%
From NCERT
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The Verhulst – Pearl equation represents what type of population growth?
| 1. | Exponential | 2. | Logistic |
| 3. | Decline | 4. | Stable |
Subtopic: Population: Logistic Growth Model |
86%
From NCERT
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In the logistic growth equation given below, the carrying capacity is represented by:
\(\frac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left(\frac{\mathrm{K}-\mathrm{N}}{\mathrm{K}}\right)\)
| 1. | N | 2. | r |
| 3. | K | 4. | K – N / K |
Subtopic: Population: Logistic Growth Model |
90%
From NCERT
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The growth rate of a natural population will exactly be zero when:
| 1. | The population size and carrying capacity are exactly equal. |
| 2. | The population size nears the carrying capacity of the habitat. |
| 3. | The ratio of population size and carrying capacity is zero. |
| 4. | Mortality is greater than natality. |
Subtopic: Population: Logistic Growth Model |
81%
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| Assertion(A): | The logistic growth model is considered a more realistic one for a population growing under natural conditions. |
| Reason (R): | Resources for growth for most animal populations are finite and become limiting sooner or later. |
|
1. |
Both (A) and (R) are True and (R) correctly explains (A). |
|
2. |
Both (A) and (R) are True but (R) does not correctly explain (A). |
|
3. |
(A) is True; (R) is False |
|
4. |
Both (A) and (R) are False |
Subtopic: Population: Logistic Growth Model |
93%
From NCERT
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Logistic growth in a population is characterized by:
| 1. | A constant rate of growth regardless of population size. |
| 2. | An exponential growth followed by a stabilization at the carrying capacity. |
| 3. | Decrease in population size after reaching the carrying capacity. |
| 4. | A linear increase in population size over time. |
Subtopic: Population: Logistic Growth Model |
63%
From NCERT
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Consider the given two statements:
| Assertion (A): | In logistic population growth, the growth rate decreases as the population reaches carrying capacity. |
| Reason (R): | Resources begin to become scarce, leading to increased mortality and decreased birth rates. |
| 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: Logistic Growth Model |
72%
From NCERT
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Determine which of the following statements about reproductive strategy of populations much below the carrying capacity is most likely to be correct?
| 1. | They typically inhabit stable environments. |
| 2. | They produce a few offspring with high survival rates. |
| 3. | They have a high intrinsic growth rate. |
| 4. | They reproduce multiple times in their life and have a very long life span |
Subtopic: Population: Logistic Growth Model |
From NCERT
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Q. No.
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