Exams › NEET › Biology

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)

1. when N/K is exactly one.
2. when N nears the carrying capacity of the habitat.
3. when N/K equals zero.
4. when death rate is greater than birth rate.

Correct answer: when N/K is exactly one.

Solution

In the logistic model, dN/dt = rN(1−N/K), the growth rate is zero when the product equals zero. For a nonzero population, this happens when 1−N/K = 0, which means N/K = 1, so the population equals the carrying capacity.

Related NEET Biology questions

• In India, human population is heavily weighted towards the younger age groups as a result of
• Association of animals when both partners are benefitted
• Competition for light, nutrients and space is most severe between
• A mutually beneficial association necessary for survival of both partners is
• Which one is true?
• It is much easier for a small animal to run uphill than for a large animal, because

⚔️ Practice NEET Biology free + battle 1v1 →