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.
A few days after conception the fertilized egg attaches to the wall of the uterus and this can cause implantation bleeding. Women may experience spotting and cramping as early as 6-12 days after the egg is fertilized. Usually the cramps and bleeding are mild. Another early sign of pregnancy is white vaginal discharge.