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.
1 Spotting can happen very early in pregnancy, before a woman even realises she is pregnant. 2  An ectopic (tubal) pregnancy.  Some forms of contraception such as Implanon, IUDs, patches and hormonal based devices increase the likelihood of spotting occurring.