Biological Science
Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
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Chapter 54, Problem 16TYPSS

In most species the sex ratio is at or near 1.00, meaning that the number of males and females is approximately equal. In China, however, there is a strong preference for male children. According to the 2000 census there, the sex ratio of newborns is almost 1.17, meaning that close to 117 boys are born for every 100 girls. Based on these data, researchers project that China will soon have about 50 million more men than women of marriageable age. Evaluate whether this skewed sex ratio will affect the population growth rate in China.

a. No, growth rate is not affected by males.

b. Yes, growth rate will increase.

c. Yes, growth rate will decrease.

d. No. the sex ratio affects only fecundity.

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