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.
Sperm left outside the body undisturbed will die within 30 minutes. Sperm that is placed or ejaculated near the vagina CAN swim up and enter the cervix under the right conditions, however, unless there is a sperm-friendly medium like Preseed or egg-white cervical mucus (EWCM), it will most likely die due to acids in the vagina.