[Solved] Expenses that are closely related to a particular department and can easily be assigned to it during an accounting period are called A) operating expenses. B) indirect expenses. C) allocated expenses. D) direct expenses. Social Structure: The organized pattern of social relationships and social institutions that together constitute society. Naked Mole Rats: A species of hairless rodents known for their longevity, resistance to cancer, and ability to live in highly social, cooperative colonies underground. Social Insects: Insects that live in organized colonies and exhibit complex behaviors such as division of labor, cooperation, and the ability to solve problems as a collective. Pheromones: Substances created and emitted by an animal into the surroundings that influence the behavior or physical state of other members of its species.