Final answer:
An ectopic pregnancy is when the fertilized ovum develops outside the uterus, and it can be life-threatening. It requires medical intervention to resolve.
Step-by-step explanation:
An extrauterine pregnancy in which the fertilized ovum begins to develop outside the uterus is called an ectopic pregnancy.
During an ectopic pregnancy, the embryo implants in a location other than the uterus, such as the uterine tube, ovary, or abdomen. This can result in serious complications and requires medical intervention.
Ectopic pregnancies can be life-threatening and are typically resolved through surgical removal of the embryo or with medication to dissolve the pregnancy.