[exDemMom]

No one has ever claimed that a zygote or embryo are the same in form and function. It is however a living human being, an individual organism distinct from any other living organism.

According to your criteria, these are living human beings in this youtube video: Fibroblasts - Human Dermal Fibroblasts | Cell Applications, Inc. They don't feel, they don't know they are alive, but that doesn't matter--you've made it abundantly clear that you don't think being conscious or being able to process information are necessary characteristics of a human being.

[TigersEye]

False. A fibroblast is not a self-sustaining organism. It does not grow into a mature organism and cannot reproduce with other fibroblasts. It is merely one of many highly differentiated cells within the embryonic organism.

That was a truly pathetic attempt to mischaracterize my definition with an outright lie.