We have different structures that perform different functions so the body can be more efficient.
to make it active and healthy
We have different structures that perform different functions so the body can be more efficient.
Many different structures are needed by the digestive system to function different parts of the digestive system.
The digestive system is made up of many structures. Humans need different structures to process the varieties of foods we eat on a daily basis.
its in the middle of your upper chest.. mostly including your lungs :)
it consists of two parts
Yes
lungs
the trachea
no, but the different parts of your respiratory system are such as your lungs being organs and part of your respiratory system.
the lungs is the basic unit structure of the human respiratory system
the structers are a lot of thing yeah