Spirit pneuma is impersonal life-force. Soul nephesh is the living being.Ah yes JWs separate soul and spirit. I remember now. They need to prove the Bible isn't talking about immortality but eternal life on Earth so they separate the two words, soul is the whole person and spirit is the life-force. I may be wrong but I don't think any other Christian religion does that.
I suppose this affects how theists would answer the op because if they're not JWs they probably see the spirit/ soul being the part that survives death and goes to heaven rather than being the life force that God put into cells and cannot be replicated by scientists.
But then do they believe the life force, the élan vital, the 'ghost in the machine' is passed on from parent to child and originated with God putting it into Adam and Eve? I don't know not having attended a church after leaving the JWs.