Please choose the correct ending to complete the given sentence: Relationships: [header] How to use a microscope to observe microorganisms [title] Place your slide on your microscope. [step] The slide will sit directly under the objective lens of the microscope. Push down on the back of the stage clip to raise the clip and allow you to place the slide under it.

Ending1: This clip will hold the slide in place while you view your sample. [title] Look through the lens at your sample. Ending2: Slide the slide over the objective lens until it slides under the microscope lens. [substeps] You may need to hold down more sharply on the slide with one hand to decrease the risk of slipping or zooming. Ending3: This will take you to the microscope window, which consists of a grid of glass and screen. [substeps] You can keep the surface of the screen raised or down. Ending4: If you use a wet slide, the slide should be beneath the microscope lens. If you use a wet slide, the slide should be below the microscope lens.

Answer format: ending1/ending2/ending3/ending4