Traditionally, some textbooks from the United States used a system of six kingdoms (Animalia, Plantae, Fungi, Protista, Archaea/Archaeabacteria, and Bacteria/Eubacteria) while textbooks in Great Britain, India, Australia, Latin America and other countries used five kingdoms (Animalia, Plantae, Fungi, Protista and Monera).
For other uses, see Placebo (disambiguation) and Placebo effect (disambiguation). The placebo effect can be produced by inert tablets, by sham surgery, and by false information, such as when electrical stimulation is turned off in those with Parkinson's disease implanted brain electrodes.
What is a Placebo. A placebo (or dummy pill) is an inert substance, typically a tablet, capsule or other dose form that does not contain an active drug ingredient. For example, placebo pills or liquids may contain starch, sugar, or saline. Physical placebo, or âshamâ treatments have also been used, such as inactive acupuncture devices.