Q. Viscum is a :

 1876  204 Organisms and Populations Report Error

Solution:

Viscum (Mistletoe) is a partial stem parasite that gorws on silverfer, popular, apple, walnut, oak etc. Cuscuta, Arceuthobiurn are total stem parasite. Rafjlesia and Orobanche are total root parasite and Sanialum album is a partial root parasite.