Answer: workbook
Explanation:
A workbook is the file that holds several worksheets.
The worksheets within a workbook can communicate with each other within the workbook or with other workbooks and their worksheets.
A worksheet within a workbook holds cells that are defined by rows and columns. Worksheets within a workbook can removed and new worksheets can be added.
<span>One system of lens - ocular microscope
Two systems of lens - compound microscope
Some of the parts of a compound microscope are the </span>eyepiece lens.<span> There are two knobs on under the other to one side of the microscope which are used for </span>Coarse focus and Fine focus. There is an illuminator<span> at the bottom of the microscopic stand, which sheds a powerful light on the subject under the lens. Other parts include </span>objective lenses<span>, </span>stage with stage clips<span> (where the subject is placed) and r</span>evolving nosepiece. The tube<span> connects the eyepiece lens to the </span>turret<span>.</span>
<span>An associate's degree requires two years of academic study and is the highest degree available at a community college</span>
