
A pattern of idealized population growth, restricted by limiting factors is shown by
a) Logistic growth model
b) Carrying capacity model
c) Dispersion model
d) Habitat cap model
e) Exponential growth model
Answer
457.5k+ views
Hint: The number of individuals present in a population over time is measured by the population growth rate. The growth rate tends to be an exponential growth rate when all the conditions are suitable for individuals to grow.
Complete answer:
The number of individuals present in a population over time is measured by the population growth rate. A pattern of idealized population growth, restricted by limiting factors is shown by a logistic growth model and when there is no restriction present and the conditions are suitable then the growth rate of the population is in exponential form. The exponential form of the growth rate is impossible as there are not infinite resources present on the Earth. In exponential growth, a smaller number of individuals and huge quantities of resources are needed. But if the number of individuals increases then the resources may get depleted which can slow the growth rate of the population. In the logistic growth model, the graph takes an ‘S’ shape in which phases can be divided into three parts. The first or the initial phase experiences an exponential growth as the number of individuals is less and the number of resources is more. But as the population size keeps on increasing the resources present keeps on decreasing this, in turn, decreases the growth rate. This phase continues and reaches a point of carrying capacity where there is a very small change in the size of the population over a particular period of time.
So, the answer is ‘logistic growth model’.
Note: The exponential growth model is not possible in the real world. It is only possible in the initial stages of the population establishment. After that, the population growth rate is affected by many factors and gets changed into a logistic growth curve.
Complete answer:
The number of individuals present in a population over time is measured by the population growth rate. A pattern of idealized population growth, restricted by limiting factors is shown by a logistic growth model and when there is no restriction present and the conditions are suitable then the growth rate of the population is in exponential form. The exponential form of the growth rate is impossible as there are not infinite resources present on the Earth. In exponential growth, a smaller number of individuals and huge quantities of resources are needed. But if the number of individuals increases then the resources may get depleted which can slow the growth rate of the population. In the logistic growth model, the graph takes an ‘S’ shape in which phases can be divided into three parts. The first or the initial phase experiences an exponential growth as the number of individuals is less and the number of resources is more. But as the population size keeps on increasing the resources present keeps on decreasing this, in turn, decreases the growth rate. This phase continues and reaches a point of carrying capacity where there is a very small change in the size of the population over a particular period of time.
So, the answer is ‘logistic growth model’.
Note: The exponential growth model is not possible in the real world. It is only possible in the initial stages of the population establishment. After that, the population growth rate is affected by many factors and gets changed into a logistic growth curve.
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