What is texture? Identify this painting and explain how the artist has used texture to create this piece.

This painting is called "N u d e Descending the Staircase, No. 2" - Marcel Duchamp

Texture is what it feels like, or the way something is made.

The texture in this painting, in my opinion, looks rough. It makes it look, important.  Some artists can pull it off, some can't.