The appendix. It serves no known function
there are 22 needed in the human body.
yes depending on what body part it is
Human needs to sleep because sleep is needed for growth and development of body. It may also lead to faster heeling of an injured part.
Water
A part of the human body that starts with N is Nose. Nerves....
The largest organ of the human body is the skin.
the human cell
A lot
The dirtiest part of a human body is inside the mouth.
The muscles contract to move parts of the body
The smallest parts of the human body are contained in the cells.
These are protein that are presented within the human body that are needed for human metabolism.