A large city has a transportation department that handles its complex system of transporting people, parcels, and freight within the city. Identify two subsystems into which the transportation system can be divided. Describe two ways these subsystems interact through the inputs and outputs of each subsystem. Enter your answer in the space provided.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.