When a population's birth rate equals its death rate, there is ______ population growth.
A. low
B. zero
C. high
D. moderate
Answer (2)
When birth rate equals death rate, population size is constant.
Constant population size means no growth or decline.
Therefore, the population growth is zero.
The final answer is zero .
Explanation
Understanding the Problem When a population's birth rate equals its death rate, the population size remains constant. This means the population is neither growing nor shrinking.
Determining the Growth Rate If the birth rate equals the death rate, the population growth is neither low, high, nor moderate. It is zero.
Conclusion Therefore, the correct answer is B. zero.
Examples
Imagine a small town where, on average, 20 babies are born each year, and 20 people pass away. In this scenario, the town's population remains stable, neither increasing nor decreasing. This concept is crucial in understanding broader ecological patterns, such as managing wildlife populations or assessing the impact of environmental changes on species survival. By maintaining a balance between births and deaths, the town ensures its sustainability and avoids potential resource depletion or overpopulation issues.
When the birth rate equals the death rate, there is no change in population size, resulting in zero population growth. Therefore, the correct answer is option B. zero.
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