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 |
The Verhulst – Pearl equation represents what type of population growth?
1. | Exponential | 2. | Logistic |
3. | Decline | 4. | Stable |
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 |
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. |
Assertion (A): | The logistic growth model is more realistic for most animal populations in nature. |
Reason (R): | Resources for growth for most animal populations are finite and become limiting sooner or later in the nature. |
1. | (A) is True but (R) is False. |
2. | Both (A) and (R) are True and (R) correctly explains (A). |
3. | (A) is False but (R) is True. |
4. | Both (A) and (R) are True but (R) does not explain (A). |