These are activities performed by students that fall outside the realm of classes. The requirements for obtaining the different classes are below. Antibodies can come in different varieties known as isotypes or classes. People were born into specific social classes. Garum was produced in various grades consumed by all social classes. She loves all her classes, especially mathematics. Both of these classes have interesting properties. The park had activities for New Yorkers of all social classes. Object properties are relations between instances of two classes. That was true for all social classes. There are several broad classes of flutes. Segregation affects people from all social classes. Websites facilitate communication of language classes or articles. Dice was a popular activity in all social classes. The game was popular among all social classes.