As a result, ecological interactions between individual organisms and entire species are often difficult to define and measure and are frequently dependent on the scale and context of the interactions (Harrison & Cornell 2008; Ricklefs 2008; Brooker et al. 2009).s a result, ecological interactions between individual organisms and entire species are often difficult to define and measure and are frequently dependent on the scale and context of the interactions (Harrison & Cornell 2008; Ricklefs 2008; Brooker et al. 2009).
Bacteria from a dirty egg grows inside, turning the contents into a foul liquid, killing any embryo present. Gasses build up and generate pressure that may cause the egg to ooze or explode. I rescued this egg from one of my fairweather broody hens, who had abandoned her nest after two weeks of sitting. The egg was no longer warm when I found it, which didnât give me much hope for the embryoâs viability, but I placed it in my incubator hoping for the best a few days ago.
After itâs released, your egg travels down your fallopian tube toward your uterus. If the egg meets up with a sperm, they combine. This is called fertilization. Fertilization is most likely to occur when you have unprotected vaginal sex during the 6 days leading up to â and including the day of â ovulation. What happens during week 3 - 4? The fertilized egg moves down your fallopian tube and divides into more and more cells. It reaches your uterus about 3â4 days after fertilization. The dividing cells then form a ball that floats around in the uterus for about 2â3 days. Pregnancy begins when the ball of cells attaches to the lining of your uterus. This is called implantation. It usually starts about 6 days after fertilization and takes about 3â4 days to be complete. Pregnancy doesnât always happen, even if an egg is fertilized by a sperm.