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What is the frequency of triplet births?
Chance of having 'natural' triplets: 1 in 8,100 (only about 30% of triplets are 'natural') There has been an increase in multiple births in recent years. Since 1980, infertility treatment has more than doubled the American twin birth rate. The rate of triplet or more births is now nearly 5 times higher than before infertility treatment was used. http://baby2see.com/multiples/multiples.html
How is birth rate death rate and growth rate related?
There are more people who are born then die.
How birth rate and death rate affect on population size?
The birth rate affects the size of population because of what its like. And the death rate is more than you can imagine.
How does the birth rate affect the size of population?
The birth rate is the number of children born in a year as a share of total population. Birth rates have important short and long-term effects. Essentially, a higher birth rate will increase the population in the short-term simply because more children are born. More importantly, it will increase population in the long-run because there will be more children in a generation, and when those children grow up there will be more people who are having children, resulting in exponential population growth.
What can cause a birth rate to grow?
More sex.
What is the birth rate of the Philippines?
3 percent more or less Birth rate:25.31 births / 1,000 population (2005 est.)
What happens when the birth rate is more than the death rate?
Population growth its that simple
Why is raising the birth rate of Singapore woman is important?
Singapore is facing a graying population, where there are more and more elderlies with less and less newborns. Increasing the birth rate would also mean to an increase in the number of babies. This can balance the population's age and make Singapore able to survive for generations to come.
What is the importance of birth rate?
because it is one of the important element to tell the population growth
How does the birth rate change the size of a population?
More babies, more members of the population.
What important factor led population growth in Colonial America in the 1700s?
The high birth rate.
Which country has an official birth rate of zero?
There are a few countries with birth rates of zero, and other countries with negative birth rates. Countries that have a birth rate of zero include, but are not limited to, Japan; Poland; and Slovakia Go to the link below to find more birth rates.
