Hormones are chemicals produced by which body system?

These two body systems work together to allow a person to move, talk, and run.

Which system breaks down food particles

Which system moves materials to and from cells.

Smooth and cardiac muscles are both?

Which system breaks down food particles

These two body systems work together to allow a person to move, talk, and run.

The correct order of the organs in the digestive system

Which system supports and protects the body parts.

Where does digestion start?