Related Clues:

• Bio 101 subject (Var.)
• One-celled organism (Var.)
• Amorphous critter
• Simple lab specimen (Var.)
• Organism frequently seen in 'The Far Side'
• '___ John Malkovich'
• Single-celled organism: var.
• Microscopic swimmer
• Microscope slide creature (Var.)
• Protozoa
• Minute creature
• Unicellular organism
• Human ___
• Tiny splitter
• Wilde's "The Importance of ___ Earnest"