Complex sentence: The human client races, the "Pnumekin", "Chaschmen", "Dirdirmen" and "Wankhmen" resemble their alien patrons to some degree, due to selective breeding, surgery and the desire of the humans to emulate their respective masters.
Split into simpler sentences: The human client races, the "Pnumekin", "Chaschmen", "Dirdirmen" and "Wankhmen" resemble their alien patrons to some degree. This is due to selective breeding, surgery and the desire of the humans to emulate their respective masters.