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Assertion :A population growing in a habitat with limited resources shows shows initially a lag phase, followed by phase of acceleration and deceleration and finally as asymptote, when the population density reaches the carrying capacity. Reason: In Verhulst-Pearl Logistic growth, plot of N (population density) at time (t) results in a sigmoid curve.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
A population growing in a habitat with limited resources shows initially a log phase, followed by phases of acceleration and deceleration and finally an asymptote, when the population density reaches the carrying capacity.
A plot population density (N) in relation to time (t) results in a sigmoid curve. This type of population growth is called verhullat pearl logistic growth and is described by the following equation.
dNdt=rN(knk)
Where N= population density at time t
r = Intrinsic rate naturall increase
and k= Carrying capaciity
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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