Which of the following is the most complex according to their cellular level of organization? by Sunday | Sep 6 | Biology JAMB | 0 comments A. Heart B. Hair C. Euglena D. Hydra Correct Answer: Option A – Heart Users Also Read These:In which of the following do shareholders always…Which of the following levels of organization in…Give TWO advantages of complex structural…Which of the following represents the correct…Which of these has the most complex level of organization?