Earlier this school year you learned about open and closed systems. Which of the following is a true statement about the human body? The human body is a closed system because and matter and energy move from one part of the body to another.
The human body is a closed system because and matter and energy move from one part of the body to another.

The human body is a closed system because normally the organs, tissues, and cells are all internal to the body.
The human body is a closed system because normally the organs, tissues, and cells are all internal to the body.

The human body is a open system because you need to take in air and food for the body to function.
The human body is a open system because you need to take in air and food for the body to function.

The human body is a open system because the circulatory system moves food around from one part of the body to another.