Answer:
Soft and cuddly I'll pull on your heart. But take my last name and I'll tear you apart.
My first is in fish but no in snail. My second is in rabbit but not in tail. My third is in up but not in down. My fourth is in tiara but not in crown. My fifth is in tree you plainly see. My whole a food for you and me.
Kings and queens may cling to power and the jesters may have their call. I am the most common but I can rule them all. What am I?
I am a nut with a hole. What am I?
I've been argued on my color. Without me you'll die. So many attempts on your life use me so make sure you have many of my White friends.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.