Sentences with phrase «balanced sex ratio»

Not exact matches

In relatively stable societies like the U.S., the most powerful factor determining the balance of men and women is that marriage squeeze, and birth patterns over the past 25 years make it possible to estimate the availability sex ratio in the U.S. through the year 2035.

Sex ratios in sub-Saharan Africa are a bit more balanced, and the sex gaps in education, work outside the home and child mortality are not as larSex ratios in sub-Saharan Africa are a bit more balanced, and the sex gaps in education, work outside the home and child mortality are not as larsex gaps in education, work outside the home and child mortality are not as large.

If there are too many males or females in a given year, however, an individual will often spawn as a member of the rarer sex, keeping the sex ratio balanced.