E. Coli Cell, for Example

This page is the CodyCross answer for the clue below from Past and Present Tech, Group 1443, Puzzle 3 (Light Bulbs).

Question is: E. Coli Cell, for Example

and the answer is: BACTERIUM

Word Meaning:

BACTERIUM — (microbiology) A single-celled organism with cell walls but no nucleus or organelles.

Definitions from Wiktionary.