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Concept explainers
To write:
The labels of the figure that follows, which illustrates the predicted pattern of changes in human
Introduction:
The birth rate is the number of live births in a particular time and the death rate is the number of the people deceased in a particular time. In humans, it is observed a decrease in the rate of death has been followed by a drop in the rate of birth. The speed of this adjustment contributes to determining future population growth.
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Explanation of Solution
The changes in the population are termed as the demographic transition. The growth rate of the population is determined by subtracting the death rate from the birth rate.
In the given graph, in the beginning, the death and birth rates are high and the population growth is constant. Then in the demographic transition, the birth rates remain the same but the death rate falls. Then in the graph, the birth rate drops and the death rate remains constant.
A labeled
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Chapter 15 Solutions
Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
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