Abortion is not mentioned, nor should it be. In the science-based world of this book, the embryo’s humanity is a given:
A human life starts when two special cells—one from a female human being and one from a male human being—make contact and fuse together. The scientific name for this process is fertilization. Fertilization transforms two cells that are merely parts of other human beings into a new human being who is one cell big! Carnegie Stage 1 is fertilization—when YOU begin to exist as a new, whole, individual, and living human being.