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.
Problems that can cause bleeding in early pregnancy include infection, early pregnancy loss, and ectopic pregnancy. Loss of a pregnancy during the first 13 weeks of pregnancy is called early pregnancy loss or miscarriage. It happens in about 10% of known pregnancies.