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.
Credit: Karl Baron CC-BY 2.0. Culture refers to the characteristics of a particular group of people, including their language, cuisine, social habits, religion, music and arts. It is a peopleâs way of life. Different groups of people have their own ways of doing things. Through culture, people develop a sense of belonging, personal growth and the capacity to empathize and associate with others.