Microscopic alga
Else clues• Form of algae
• It may wind up in the belly of a whale
• Marine microorganism
• Morsel for Moby Dick
• One-celled alga
• One-celled sea creature
• Plankton component
• Plankton constituent
• Simple bit of plankton
• Single-celled alga
• Microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica