those countries have very high taxes. Ã°â¢The average annual growth rate for the European population from 1985 to 1995 was only. 0.28 percent; in the same period the population of Asia grew by 1.69 percent per year, and. that of North America by 1.33 percent annually.
The life span of sperm after ejaculation depends on the circumstances. Ejaculated sperm remain viable for several days within a woman's reproductive tract or in nutritive liquid (culture medium) in a lab setting. Fertilization is possible as long as the sperm remain alive â at least five days. Sperm also can be preserved for years when semen is frozen. With. Landon Trost, M.D. 1  Secondary infertility. 2  Paternal age.
It takes sperm approximately 36 hours to fertilize the egg after the male ejaculates in the vagina.t will then take approx. 36 hours for the ovaries to release the mature eggs. However the egg can only survive up to 24 hours without fertilization via sperm. Sperm can survive up to 5 days in body to search for the unfertilized egg.