â¦longevity of seeds, the dormant embryo plant contained within the seed will lose its viability (ability to grow) if germination fails to occur within a certain time. Reports of the sprouting of wheat taken from Egyptian tombs are unfounded, but some seeds do retain their viability a long time.
Implantation bleeding-Spotting during pregnancy may be caused by implantation. Implantation bleeding occurs after the egg burrows into the lining of the uterus. As the egg implants into the lining sometimes a little bit of bleeding will occur.
Vaginal bleeding during pregnancy can occur frequently in the first trimester of pregnancy, and may not be a sign of problems. However, bleeding that occurs in the second and third trimester of pregnancy can often be a sign of a possible complication.Bleeding can be caused by a number of potential reasons.iscarriage: Bleeding can be a sign of miscarriage, but does not mean that miscarriage is imminent. Studies show that anywhere from 20-30% of women experience some degree of bleeding in early pregnancy.