Answer:
The part of a microscope that holds the slide is called the stage.
Explanation:
The stage is typically a flat, rectangular platform that is located below the objective lenses and above the base of the microscope. The slide is placed on the stage and secured in place using clips or other mechanisms. The stage can be moved horizontally and vertically using stage controls, which allows the user to position the slide in the field of view of the objective lenses. Some microscopes also have a mechanical stage, which allows the user to move the stage with greater precision using a pair of knobs or a joystick.