Question

system inputs and outputs
describe the purpose (what the system does), inputs (things that go into the system, like energy or raw materials), and outputs (things the system produces) of each system.
digestive system
purpose:
input(s): output(s):
a vehicle
purpose:
input(s): output(s):
healthcare system
purpose:
input(s): output(s):
elevator
purpose:
input(s): output(s):

Explanation:

For the Digestive System: The purpose is to break down food into nutrients for absorption and eliminate waste. Inputs are food and water. Outputs are absorbed nutrients and feces.
For a Vehicle: The purpose is to transport people or goods. Inputs include fuel (e.g., gasoline, diesel) and sometimes electricity. Outputs are movement and exhaust emissions.
For the Healthcare System: The purpose is to maintain and improve health, diagnose and treat diseases. Inputs are medical staff, drugs, medical equipment, and patients. Outputs are treated and healthy patients, medical reports.
For an Elevator: The purpose is to transport people and goods between floors. Inputs are electricity and control - signals. Outputs are vertical movement of passengers and cargo.

Answer:

Digestive System:
Purpose: Break down food and absorb nutrients
Inputs: Food, water
Outputs: Absorbed nutrients, feces

A Vehicle:
Purpose: Transport people or goods
Inputs: Fuel, electricity (in some cases)
Outputs: Movement, exhaust emissions

Healthcare System:
Purpose: Maintain and improve health, diagnose and treat diseases
Inputs: Medical staff, drugs, medical equipment, patients
Outputs: Treated patients, medical reports

Elevator:
Purpose: Transport people and goods between floors
Inputs: Electricity, control - signals
Outputs: Vertical movement of passengers and cargo