Answer:
Compound
Step-by-step explanation:
The compound microscope is an optical microscope that has more than one objective lens. They are especially used to examine transparent objects, or cut into sheets so thin that they are transparent. It is also used to increase or enlarge the images of objects and organisms not visible to the naked eye, this is achieved through two optical systems (which are each made with one or more lenses) and these act consecutively achieving its mission of expanding or increase the images of organism and objects observed.
The common compound microscope is made up of three systems: The mechanical system is made up of a series of pieces in which the lenses that allow movement for focusing are installed. The optical system comprises a set of lenses arranged in such a way that it produces the increase of the images that are observed through them. The lighting system comprises the parts of the microscope that reflect, transmit and regulate the amount of light necessary to perform the observation through the microscope.