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.
Bleeding or spotting later in pregnancy may be caused by: 1  Labor. 2  Having sex. 3  An internal exam by your health care provider.  Problems with the cervix, like an infection or cervical insufficiency. This is when a womanâs cervix opens too early.