. Heterotrophic plants are these which
(a) feed on dead and decaying organisms.
(b) draw nutrition from the living tissues of other organisms.
(c) depend on sources other than themselves for food.
(d) all of these
(d) Many plants (for example, fungi and bacteria) lack chlorophyll and cannot prepare their own food. Similarly, many plants derive their food by feeding on dead and decaying bodies, or by living in or on the bodies of other living organisms. Four such methods of heterotrophic nutrition are:
I. Saprophytic; II. Parasitic; III. Symbiotic; IV. Insectivorous.