(1) Nonetheless, the art center is a liberal subunit within a conservative institution.(2) No subunit aims at self-sufficiency, but seeks rather to exchange the products of its own activities with those of others.(3) Tank units and subunits attached to rifle divisions and regiments were used for direct support of infantry.(4) Evidence has been accumulating that this species is composed of subunits that are genetically distinct.(5) The heart of this work is identifying the sequence of DNA subunits that constitute the human genome.