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.
Is spotting or bleeding during pregnancy something to worry about? Remember, light spotting is as variable in a normal pregnancy as it is common and is usually nothing to be concerned about. Some women spot on and off for their entire pregnancies, while others spot for just a day or two or a few weeks.