no.
Yes, they do! You can cut them in any way you want and they will grow back!
no
yes they will grow back twice as faster
don't know, does it grow back.
It will grow back, just not necessarily at that same spot that you cut it at.
Yes. Tick heads do grow back.
Yes.
sometimes
no
your gums
yes your layers will grow then just get them cut back in. or cut it and then layer it or cut it and wait for it to grow and then layer