'Worm' in the Bible

Though a man comes to nothing like a bit of dead wood, or like a robe which has become food for the worm.

I have said to corruption, Thou art my father: to the worm, Thou art my mother, and my sister.

Together -- on the dust they lie down, And the worm doth cover them over.

The womb shall forget him; the worm shall feed sweetly on him; he shall be no more remembered; and wickedness shall be broken as a tree.

How much less man, that is a worm? and the son of man, which is a worm?