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Question

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?
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A
Exponential growth curve
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B
Logistic growth curve
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C
Both the growth curves
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D
None of the above
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Solution

The correct option is B Logistic growth curve
  • The growth of animals in a population depends on the available resources in the environments.
  • This model applies to the population depends on density-dependent factors like food abundance, resting place, sickness, competition, etc. It says that the growth of the population depends on environmental factors.
  • In contrast, the exponential growth does not consider the environmental limits, it says a population can grow with no limits. So, the logistic growth curve is more realistic.
    Hence, the correct option is B.

Biology

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