What is the level of organization of an onion bulb? By: Sunday|Published on: Sep 8|Categories: Biology JAMB| 0 comments A. tissue B. organ C. systemic D. organismal Correct Answer: Option B – organ Users Also Read These:The highest level of ecological organization is the?A common disease of onion is?The level of organization of the organism is?The cell of an onion bulb can be differentiated from…A major symptom f onion/twister is?SEE ALSO Which of the following structures differentiates an animal cell from a plant cell?