NEETZoologyOrganisms and Populations
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The Verhulst-Pearl logistic growth model is considered a more realistic model than the exponential growth model. Reason (R): Resources for growth for most animal populations are finite and become limiting sooner or later. In the light of the above statements, choose the most appropriate answer from
Options
- ABoth Assertion (A) and Reason (R) are correct but Reason (R) is not the correct explanation of Assertion (A).
- BBoth Assertion (A) and Reason (R) are correct and Reason (R) is the correct explanation of Assertion (A).
- CAssertion (A) is correct but Reason (R) is not correct.
- DAssertion (A) is not correct but Reason (R) is correct.
Correct answer
B. Both Assertion (A) and Reason (R) are correct and Reason (R) is the correct explanation of Assertion (A).
Step-by-step solution
According to the principles of population ecology, no population of any species in nature has at its disposal unlimited resources to permit exponential growth indefinitely. This leads to competition between individuals for limited resources, eventually resulting in a carrying capacity. Since resources for growth for most animal populations are finite and become limiting sooner or later, the logistic growth model (which incorporates environmental resistance and carrying capacity) is considered a more realistic one c