The complications of ectopic pregnancy (Section 17.2) are life-threatening for the mother, and in fact each year in the United States a few pregnant women die when their situation is not diagnosed in time. Tragically, the only option is to surgically remove the embryo, which was doomed from the beginning. Based on what you know about where an embryo normally develops, explain why the ectopic embryo in Figure 17.25 could not have long survived.

Figure 17.25

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Sections 17.2, 17.3 During the first week or so after fertilization, cell divisions and other changes transform the zygote into a multicellular blastocyst, which attaches to the mother's uterus during implantation. The blastocyst includes the inner cell mass, a small clump of cells from which the embryo develops.