Final answer:
The concept that organizations are becoming more heterogeneous across various groups is defined by the term 'diversity'. Discrimination, in contrast, deals with unjust treatment in various aspects including the labor market.
Step-by-step explanation:
Organizations are becoming more heterogeneous in terms of gender, age, race, ethnicity, sexual orientation, and the inclusion of other diverse groups through the concept of diversity. Discrimination, in contrast, is the unjust or prejudicial treatment of different categories of people, especially on the grounds of race, age, or gender. In the labor market, discrimination manifests as unequal pay or job opportunities for workers with the same skill levels, often due to their race or gender. Efforts to combat such issues include laws and policies advocating for equal pay for equal work and improved access to education.