can i use the Apple Pencil on a MacBook Pro without an iPad?

An Apple Pencil can only be used with an iPad - and then the correct Apple Pencil can only be used with a compatible iPad model. You cannot use an Apple Pencil as an input device with a Mac or trackpad - as neither have the necessary hardware with which the Pencil interacts with the screen.

The two different Apple Pencil generations are not interchangeable.

Here is the definitive compatibility list for Apple Pencil and iPad:

Apple Pencil compatibility - Apple Support

No, the Mac has no touch screen capability.