If everything living has cells, why does your hair?
Your hair is dead but your follicle is alive so why does dead hair have cells?
Dude you need to remember that cells form tissues and tissues form organs and then an organism is made. Same goes to your hair too, cells are the basic units. Dead, or undead.
Um... A rock has cells. Not just living matter has cells. EVERYTHING has cells. It's matter, and matter is created by cells.
The part the hair grows from has to be alive. Dead things don't grow.
Beacuase hair is dead cells
because you hair isn't actually alive, there for it was living inside your head then died, so there dead cells inside it.