Body:
Thecamera bodyis the most basic part of a camera. It is the box that holds the film and thecamera controls. The lens is either built-into the body or attaches to the body. The body also houses a battery that powers the shutter, flash,light meter, and other controls. There are generally rings to connect a strap to the camera for easy carrying as well.
Lens:
Thelensis the part of the camera (or an attachment for the camera) that focuses light into the body and onto the film. The aperture is also contained within the lens.