odas the last topic in this Chapter Exercises 1. What is the difference between the conceptual world and the real world? is it possible for a 2. Use examples to distinguish between the following 71 conceptual model to represent reality in total? Why or why not? a. an object type and an entity type b. an object and an entity c. a property and an attribute d. an entity and an entity instance e. an association and a relationship f. an object class and an entity class dnta tynes associated with attributes. nd n derived attribute