Answer:
The other systems I am aware of are...
Immune System: fights off disease-causing germs and other harmful substances
Respiratory System: works to move oxygen throughout the body and clean out waste gases like carbon dioxide
Cardiovascular System: delivers oxygen, nutrients, hormones, and other important substances to cells and organs in the body using blood
Nervous System: transmit signals between different parts of the body so we can move our muscles
Digestive System: breaks down food into small molecules, which are then absorbed into the body
Excretory System: removes waste from the human body
