Which of the following is the most complex according to their cellular level of organization?
A.
Hair
B.
Euglena
C.
Hydra
D.
Heart
Answer: D
To see detailed solution to this question and thousands of other questions offline, download TestDriller UTME. Practice rigorously for UTME, enjoy educational games, summary of JAMB literature books, compete with your peers, win prizes and more.