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  • When does the growth rate of population following the logistic model equal zero ? The logistic model is given as dN/dt=rN(1-N/K)Option: 1 When d

When does the growth rate of population following the logistic model equal zero ? The logistic model is given as dN/dt=rN(1-N/K)

Option: 1

When death rate is greater than birth rate


Option: 2

When N/K is exactly one 


Option: 3

When N nears the carrying capacity of the habitat


Option: 4

When N/K equals zero


Answers (1)

 

Stationary (Plateau) phase -

Finally, growth rate becomes stable because mortality and natality rates become equal to each other. So there is zero growth rate.

- wherein

 A stable population is said to be in equilibrium, or at saturation level. This limit in population is a constant K and is imposed by the carrying capacity of the environment.  S-shaped curve is also called logistic curve. Sigmoid growth curve was described by Verhulst, (1839

 

 Correct option is 2

 

Posted by

Ramraj Saini

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