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.
During very early pregnancy, implantation bleeding can also occur â this is when the fertilised egg is being implanted into the lining of the uterus, and you may experience mild cramps alongside light bleeding or spotting. Other causes. Other things which may cause bleeding or spotting in early pregnancy include: 1  An internal examination/smear â any irritation to the cervix can cause some light bleeding so it's best to avoid having a smear or internal examination in early pregnancy.