Sandalwood plant is a partial root parasite. Santalum is a genus of woody flowering plants, the best known and commercially valuable of which is the Indian sandalwood tree. Most are root parasites which photosynthesis their own food, but tap the roots of other species forwater and inorganic nutrients.Cuscuta is a parasitic plant. It has no chlorophyll and cannot make its own food by photosynthesis. Instead, it grows on other plants, using their nutrients for its growth and weakening the host plant. Nepenthes is a carnivorous pitcher plant. Mushrooms are considered heterotrophs (and not autotrophs) because they do not make their own food for energy. Rather theyobtain food from the decomposing organisms in the environment. So,the fourth pair is not correctly matched.