Which of these has the most complex level of organization? by Sunday | May 18 | Biology WAEC | 0 comments A. Euglena B. Hydra C. Heart D. Virus Correct Answer: Option C C. Heart Users Also Read These:Which of the following substances is not complex…Give TWO advantages of complex structural…Complex social behaviour and organization are found…Which of the organs of the United Nations…The rocks of the basement complex are generally…