1. The technical field of using microscope to view objects
2. The study of microscopic organisms, such as bacteria
that are too small to be seen in any detail with the unaided eye. and viruses.
3. He used the microscope with only one lens to observe 4. He discovered the cells.
insects and other specimens.
5. A part of compound microscope that includes eyepiece and the 6. A part of compound microscope that manages the light
objective lenses. source in order to see clearly the image of the specimen.

pls help T^T