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Question
After exponential increase, population growth declines and stagnates. The growth curve is
After exponential increase, population growth declines and stagnates. The growth curve is
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Solution
The correct option is A S-shaped
There are three different sections to an S-shaped growth curve. Initially, growth is exponential, because there are few individuals and ample resources available. Then, as resources begin to become limited, the growth rate decreases. Finally, growth levels off at the carrying capacity of the environment, with little change in population size over time. When resources are unlimited, populations exhibit exponential growth, resulting in a J-shaped curve. When resources are limited, populations exhibit logistic growth. In logistic growth, population expansion decreases as resources become scarce, leveling off when the carrying capacity of the environment is reached, resulting in an S-shaped curve.
Thus, the correct answer is option A.
There are three different sections to an S-shaped growth curve. Initially, growth is exponential, because there are few individuals and ample resources available. Then, as resources begin to become limited, the growth rate decreases. Finally, growth levels off at the carrying capacity of the environment, with little change in population size over time.
When resources are unlimited, populations exhibit exponential growth, resulting in a J-shaped curve.
When resources are limited, populations exhibit logistic growth. In logistic growth, population expansion decreases as resources become scarce, leveling off when the carrying capacity of the environment is reached, resulting in an S-shaped curve.
Thus, the correct answer is option A.
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