Hmm. Apoptosis is something that I study. In years of studying it, I am unaware of any multicellular creature's cells that do not have apoptosis (programmed cell death) as part of their functionality. I even linked two papers that support that assertion. If you are aware of any study that shows that there are animals who do not employ apoptosis, please show me the evidence.

I mean, its fundamental in development (during gestation) for all animals. Every single one uses apoptosis to delineate tissue boundaries. What you are saying is ludicrous to the extreme unless you can provide evidence to support it.