Angina pectoris, commonly known as angina, is the sensation of chest pain, pressure, or squeezing, often due to ischemia of the heart muscle from obstruction or spasm of the coronary arteries.
Pure Culture. A pure culture is a population of cells or multicellular organisms growing in the absence of other species or types.
By: John (Jack) Junker. Dominant culture (mainstream culture) is the culture that is held within a large amount of people residing in a society, or in other words it is the culture that seems the most ânormalâ to those that live in a specific area of the world.