What does the nosepiece do on a microscope

The nosepiece rotates to easily change the magnification. It holds two or more objective lenses that hold different degrees of augmentation power. This allows the person using the microscope to locate and detect different objects using a lower power lens and then examine the objects more closely with the high power one. There would only be one level of magnification if it didn't have a nosepeice .

emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !

because the light is a great source of energy for the plants to survive. (i hope this )