Which of these organisms exists as a filament? by Sunday | Apr 23 | Biology NECO | 0 comments A. Diatom B. Euglena C. Paramecium D. Spirogyra E. Volvox Correct Answer: Option D – Spirogyra Users Also Read These:Calculate the resistance of the filament of a lamp…Micro-organisms which break down dead organisms and…An electric lamp rated 120W is used on a 240Vrms,…When a Spirogyra filament is placed in a…Which of the following organism exists as a filament?