Colors Sported by Shorkies. Yorkshire terriers are typically tan and black, although blue is one variation that is accepted. Shih Tzus bring a whole rainbow of color to the party, though, with all colors from cream to red to black to white.
Age set. In anthropology, an age set is a social category or corporate social group, consisting of people of similar age, who have a common identity, maintain close ties over a prolonged period, and together pass through a series of age-related statuses. This is in contrast to an age grade, through which people pass individually over time.
An age structure in a population is created when you have an overlap in generations. It is defined as the age of all the individuals in the population. Each age group will have its own birth rate, (for example 5 year olds versus 20 year olds), and death rates (20 year olds versus 60 year olds).