that not good question's the first place when a human head is cut off no it cant not grow back its like any animal.
Will my hair grow back after having a boil on my head
No
yes your hair will grow backwill grow back.
Yes. Tick heads do grow back.
A hydra
No the just grow back normal and will eventually grow back to normal and you have to pluck them about every 5 to 6 months or some peoples grow faster than others but no they dont grow back spiky.
maybe not If not over a prolonged length of time then it will grow back.
it does grow on the sides and back of your head it is just underneath the hair from the top of your head :)
head does not grow back Yes it will. Shaving hair does not stop regrowth.
Well... If you cut your head off you are going to die. Your head wont grow back.
No.
no you utter spastic.