<prompt> The hookworm thrives on ?Whole bloodPlasmaSerumRBC  <response>: Ans. is b i.e., Plasma Hook worms Ancylostoma duodenale - Old world hookworm Nector americanus - New world hook worm Habitat - Small intestine Jejunum duodenum Ileum Infective form - Filariform larva Mode of infection - Penetration of skin Plasma forms the main source of nourishment for hookworm, the red blood cells pass out from the worm practically unchanged into the lumen of hosts intestine. 