Depends if you mean biologically or socially..
Biologically - Humans are very much a heterogeneous mixture. Socially - That is open to interpretation (i.e. do all humans act the same or all act...
Some are, and some aren't. A heterogeneous mixture is any comination of things that are not blended thoroughly. Therefore, a hamburger is a heterogeneous mixture. However, if somebody were to put a...
Opinion.
Perhaps this question assumes an unfair generalisation. It is part of the basic human character to be concerned about our fellow human beings.
Stories regularly appear in the press about...