What is 'carrying capacity' of a species in a habitat ? Why is logistic growth model considered more realistic. [2 Marks]

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Solution

This maximum number of individuals of a species that a habitat can suatain is called the carrying capacity of that species in that habitat. [1 Mark]

The logistic growth model is more realistic because habitat has limited resources. So, the growth shows initially a lag phase, followed by phases of acceleration and deceleration and finally the population density reaches the carrying capacity. [1 Mark]

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Similar questions

Q. Study the following statements (A - D) related to the logistic growth model and select the wrong statements.

A. A population growing in a habitat with limited resources initially shows a lag phase.

B. Carrying capacity of a population is represented by ‘r’.

C. Logistic growth model is not a realistic growth model.

D. Logistic growth model is represented by a sigmoid curve.

State whether the following statements are true (T) or false (F).

I. Carrying capacity of a population is represented by ‘r’.

II. A population growing in a habitat with limited resources shows initially a lag phase.

III. Logistic growth model is represented by a J- shaped curve.

Q. The graph shows two types of population growth curve. A is exponential and B is logistic.
Which one of the following growth model considered as more realistic one?

Q. What is the formula for logistic growth, if

r

stand for the intrinsic rate of growth,

N

for the number of organisms in a population, and

K

for the carrying capacity?

Q. A logistic growth curve depicting a population that is limited by a definite carrying capacity is shaped like the letter

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