Sources of drugs: plants, animals, microbial, marine, mineral and plant tissueculture. Plants: Liquorice and Clove Animals: Shellac and Cod Liver Oil Microbial: Saccharomyces boulardii and Lactobacillus casei Marine: laminarin and and catarabin Mineral: Talc andShilajit Plant tissue culture: Digoxin and Atropine. Prepare PowerPoint slides on the above topic with the plant's original pic