Definition of ETHNOMEDICINE. : the comparative study of how different cultures view disease and how they treat or prevent it; also: the medical beliefs and practices of indigenous cultures.
Ten materials familiar to various prehistoric cultures are now known to be chemical elements: Carbon, copper, gold, iron, lead, mercury, silver, sulfur, tin, and zinc. Three additional materials now accepted as elements, arsenic, antimony, and bismuth, were recognized as distinct substances prior to 1500 AD.
a. models i, ii, iv, and vi. b. models iii and v. 15) What two pieces of information does a chemical formula provide? A chemical formula provides each chemical substance (each element), and a subscript below each element representing how many atoms of each element is in one unit of the substance. 16) Name the elements and list the number of each atom indicated in the following substances: a. Elements: Hydrogen, Phosphorus, and Oxygen.