... is a hemp plant that grows in warm weather, or inside under strictly controlled conditions. There are sixty- six different kinds of marijuana but they are commonly classified in ten groups (Bock 4). Marijuana's main chemical component is THC or tetrahydrocannabinol. There are also a little over 400 other natural chemicals that make up cannabis sativa (Mechoulam 7). The use of marijuana can be tracked ... used in scientific experiments. A number of people can recognize the taste and smell of marijuana which makes it impossible for subjects to be completely ignorant about what they are us...

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• Grade Level: Undergraduate