A strain of a species with certain characters fixed genetically;
Used more loosely to mean a form with certain characters.
A population within a species which exhibits general similarities within itself, but is both discontinuous and distinct from other populations of that species, though not sufficiently so as to achieve the status of a taxon.
Most people think of “race” as a biological category or as a way to label different groups according to a set of common, inborn biological traits (e.g., skin color, or shape of eyes, nose, and face). Despite this popular view, there are no biological criteria for dividing races into distinct categories. Race is not a biological category, but it can have meaning as a social category. Different cultures classify people into racial groups according to a set of characteristics that are socially significant. The concept of race is especially potent when certain social groups are separated, treated as inferior or superior, and given differential access to power and opportunities.
A group of people who differ from other on the basis of physical characteristics.