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.
More in Miscarriage. The term spotting describes light vaginal bleeding. Spotting can occur during viable pregnancies as well as in women who have complications with their pregnancies. Roughly half of women who have spotting or bleeding during their pregnancies go on to have healthy babies.