Question

For the parts in a system to work correctly, the parts must be arranged or built upon in a particular order. What is the correct order of the parts of a human body system from simplest to most complex?

organ
cell
organ system
tissue

ummm... this is middle school science btw

Answer 1

The answer should be the cell, tissue, organ, and finally organ system.

Answer 2

cell

tissue

organ

organ system