Biology
Grade-10
Easy
Question
Logistic population growth can be expressed mathematically using which of the below equation?
- dt/dN = Nr (K-N)/K
- dN/dt = rN (K-N)/K
- dN/dt = rN
- dN/dt = rN (N-K)/N
Hint:
dN/dt=rN(K-N)/K
The correct answer is: dN/dt = rN (K-N)/K
Population growth rate is measured by the number of individuals in a population (N) over time (t). The term for population growth rate is written as (dN/dt). K represents the carrying capacity and r is the maximum per capita growth rate for a population. Thus, the exponential growth model is restricted by this factor to generate the logistic growth equation:
dN/dT = rmax(dN/dT)= rmaxN((K-N)/K).
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