Multiple Choice
The following graph shows a population size increasing rapidly at first and then leveling off as it approaches a maximum limit. This pattern is representative of what type of population growth?
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50. Population Ecology
Introduction to Population Growth Models
Multiple Choice
Which graph best illustrates a population growing at its biotic potential?
A
A J-shaped curve showing exponential growth
B
A downward-sloping line indicating population decline
C
An S-shaped curve showing logistic growth
D
A straight horizontal line indicating constant population size
Verified step by step guidance1
Understand the concept of biotic potential: Biotic potential refers to the maximum reproductive capacity of a population under ideal environmental conditions, where resources are unlimited and there are no limiting factors like predation or disease.
Recognize the type of growth associated with biotic potential: When a population grows at its biotic potential, it exhibits exponential growth, which is characterized by a rapid increase in population size over time.
Identify the shape of the graph for exponential growth: Exponential growth is represented by a J-shaped curve, where the population size starts small, grows slowly at first, and then increases rapidly as time progresses.
Eliminate incorrect options: A downward-sloping line indicates population decline, an S-shaped curve represents logistic growth (which includes limiting factors), and a straight horizontal line shows a constant population size. None of these align with exponential growth at biotic potential.
Conclude that the correct graph illustrating a population growing at its biotic potential is the J-shaped curve showing exponential growth.
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