snake game revisit, some doubts in it

I am bit confused with the snake head the snake body positions. I made the prefab of the snake to use it for the snake body parts.

Now my doubt is:

Is it possible to use that one for the body part of the snake with out any modifications to that prefab. what i mean is, do we need to remove the java script attached to that(i.e the snake movement and collision detection script)

And what about the tail part, is it possible to use that prefab for the tail part as well or do I need to create other prefab for the tail part.