Question 5
Cell Structure and OrganisationWhich of these has the most complex level of organization?
- A.Euglena
- B.Hydra
- C.Heart
- D.Virus
Show the answer and explanation
Answer: C (Heart)
Explanation
The heart is an organ made of several tissues working together; Hydra is organised only at tissue level, Euglena is a single cell and a virus is not even a cell.