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.
DNA only has 5 different atoms - carbon, hydrogen, oxygen, nitrogen and phosphorous. According to one estimation, there are about 204 billion atoms in each DNA . DNA only has 5 different atoms - carbon, hydrogen, oxygen, nitrogen and phosphorous. According to one estimation, there are about 204 billion atoms in each DNA .