Using a graticule and micrometre

• What can you use a graticule and micrometer to do?

  Calculate the size of cells
• What is an eyepiece graticule fitted onto?

  The eyepiece
• Describe the eyepiece graticule?

  Like a transparent ruler with numbers but NO UNITS
• What can you do when you take the stage micrometer away?

  when you take the stage micrometer away and REPLACE IT with the slide containing the tissue sample, you will be able to measure the size of the cellsl