Studying Cells

Review Questions

When viewing a specimen through a light microscope, scientists use ________ to distinguish the individual components of cells.

  1. a beam of electrons
  2. radioactive isotopes
  3. special stains
  4. high temperatures

Hint:

C

The ________ is the basic unit of life.

  1. organism
  2. cell
  3. tissue
  4. organ

Hint:

B