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-efjnvv8u5f2e.png />

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

 2257  169 NTA AbhyasNTA Abhyas 2020Organisms and Populations Report Error

Solution:

(i) A—Exponential growth curve and B—Logistic growth curve
(ii) Logistic growth curve B is considered more realistic one because the resources are finite and become limited sooner or later.
(iii) 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.
(iv) N symbolises population density, i.e. the number of individuals of a species in a given population per unit area.