A population growing in a habitat with limited resources show initially a lag phase, followed by phases of acceleration and deceleration and finally an asymptote, when the population density reaches the carrying capacity. A plot of N (population density at time t ) in relation to time (t) results in sigmoid curve. This type of population grown is called Verhulst-Pearl Logistic Growth and is describes by the following equation : dN/dt=rN(KK−N) where, N= Population density at time t, r= Intrinsic rate of natural increase K = Carrying capacity Since resources for growth for most animal populations are finite and become limiting soner or later, the logistic growth model is considered a more realistic one.
The logistic population growth is expressed by the equation
NEET UG 2011 — Zoology Organisms and Populations
2011mcqmedium
The logistic population growth is expressed by the equation
Official previous-year question
Held on 30 Apr 2011 · Verified 9 Jul 2026.
Options
- A
dt/dN=Nr(KK−N)
- B
dN/dt=rN(KK−N)
- C
dN/dt=rN
- D
dN/dt=rN(NN−K)
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