My Biology teacher told us that it is actually the Y-chromosome in the male sperm cell. Roughly half of the sperm cells are equipped with it, the other half carries a X-chromosome. Those determine if the baby becomes a boy (Y) or a girl (X). The y-chromosome is actually just a X-chromosome with a missing strand, therefore it's lighter and gives the sperm cells equipped with it an advantage in speed. The first cell to hit the egg wins, so y-chromosome carrying sperm cells have a slight advantage. It's marginal but it's there.
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In 2011, the population of boys in the US was slightly higher than that of girls. The ratio was around 51% boys to 49% girls.
The population of Than Tawan is approximately 50,000 people.
Slaves represented a sizeable percentage of the population of the antebellum south. In the lower south, slaves represented 47% of the population. The total percentile in the upper south was 29%. The border states had a population of 13% of slaves against the total population.
there are more older people than younger people.
Asia has more than half of the world's population, making it the continent with more than the average share of population.
The male-female ratio decreased from 1910 to 1940. A+
lower. the population is continuously increasing.
According to 2009 figures, the male/female ration is 1.01/1. So with a world population of 6 billion, that would mean there are 60 million more boys than girls in the world.
World wide, at birth, there are ABOUT 105 boys to every 100 girls. However, boys tend to die sooner than girls. In the entire world population, children and adults, the ratio is ABOUT 101 males to 100 females. There IS a very tiny percent of the population that is neither male nor female, but those numbers are too small to show as a percentage of the population. The male-female ratio is not the same in all countries- some have more girls, some more boys.
In 2011, the population of boys in the US was slightly higher than that of girls. The ratio was around 51% boys to 49% girls.
No. In 2010, women make up just a little more than half of Australia's population.
Yes there were a few, but there were many more boys than girls.
The interior of south America has lower population than the coastal areas as ther is no proper water supplythere.
No
They wont go lower than 14.
The alto boys and girls are an octave lower than soprano.
NO The Star Wars movies have more leading male actors than leading female actors. In other words, more boys than girls.