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.
4. 1  Key Differences between Implantation Bleeding and a Menstrual Cycle. 2  Spotting is light bleeding that can occur between periods or even in the early onset of pregnancy; it could also be a symptom of a miscarriage. Other elements that can cause spotting are pelvic exams, sex, or even irritation of the cervix.