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  • 1(current)
Q. No.
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion(A): A population that fits the logistic growth model increases more rapidly at intermediate size rather than at relatively small and large sizes.
Reason (R): The population growth rate decreases dramatically as the population size approaches the carrying capacity.
In the light of the above statements, choose the most appropriate answer from the options given below :
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.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Population: Logistic Growth Model |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

The growth rate of a natural population equals zero:

1.  when N/K is exactly one
2.  when N nears the carrying capacity of the habitat
3.  when N/K equals zero
4.  when mortality is greater than natality
Subtopic:  Population: Logistic Growth Model |
 75%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

The sum of the environmental factors that tend to restrict the biotic potential of an organism is called environmental resistance. In the logistic growth equation dN/dt = rN[K-N/K], the environmental resistance is represented by:

1.r2.N
3.K4.[K-N]/K

Subtopic:  Population: Logistic Growth Model |
 52%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
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