Activity 1: What a bunch of grapes! A bunch of grapes is a good representation of the parts of the respiratory system. What does each part of the "bunch of grapes" model represent, in relation to the breathing system? Write your answers on your notebook. two large branching stems main stem small stems individual grapes Relation to the part of the Respiratory System "Bunch-of-Grapes Parts" 1. main stem 2. two large branching stems 3. small stems 4. individual grapes​