Answered
In Animal Behavior
What is the scope pharmacognosy?
Most of the crude drugs are obtained from plants & only a small no comes from animals & mineral origin. Drugs obtained from plants consist of entire plants or their parts. Eph…edra & datura are entire plants. While senna leaves & podes, nux-vomica seeds & cinchona bark are parts of plants. crude drugs may also be obtained by physical processes like drying (opium) or extracting with water (catechu,agar) several other useful substances affecting health of animals & human being are also included along with crude drugs in the study of pharmacognosy. These substances include allergens, anti-biotics, flavouring agents, colours, pesticides, immunizing agents, vehicles & diagnostic aids. . (MORE)