NEET Previous Year Question
When does the growth rate of a population following the logistic model equal zero ? The logistic model is given as dN/dt = rN (1–N/K) :-
Topic: NEET PYQ
Answer: A. Full step-by-step solution below.
- Awhen N/K is exactly one.
- Bwhen N nears the carrying capacity of the habitat.
- Cwhen N/K equals zero.
- Dwhen death rate is greater than birth rate.
Correct answer: A
Solution
(a)For growth rate to be zero:
So, the population growth rate becomes zero when the population reaches the carrying capacity (K).