1. Tardigrade
  2. Question
  3. Biology
  4. The graph shows two types of the population growth curve, 'a' — Exponential and 'b' — Logistic. Which of the following graph models is considered to be the more realistic one? <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/b-met0bue0nwh5if9g.jpg />

Q. The graph shows two types of the population growth curve, 'a' — Exponential and 'b' — Logistic. Which of the following graph models is considered to be the more realistic one?
Question

 184  158 NTA AbhyasNTA Abhyas 2022 Report Error

Solution:

In the given graph, “a” is—Exponential growth curve and “b”—Logistic growth curve.
  • Logistic growth curve “b” is considered a more realistic one because the resources are finite and become limited sooner or later.
  • K stands for carrying capacity, which refers to the maximum number of individuals of a population that the given environment can sustain at a given time.
  • N symbolises population density, i.e., the number of individuals of a species in a given population per unit area.