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.
Under these ideal circumstances, sperm can survive for up to 7 days. Around ovulation time, a womanâs body produces cervical mucus that makes the conditions in the vagina favorable for sperms, which makes it much easier for them to go beyond the cervix and into the fallopian tubes.ypically, sperm doesn't last too long. It only takes a few minutes for sperms to dry out and die, if it ends up anywhere other than the female's vagina. However, there are always exceptions. Depending on the moisture and temperature of the surface, sperm can last up to several hours after ejaculation.