tissue -> organ system -> organ -> cell organ -> cell -> organ system -> tissue cell -> tissue -> organ -> organ system organ system -> organ -> cell -> tissue
I gave my students this multiple choice question: Which illustrates the correct order of relationships in organisms?

Only one answer is correct among these 4 choices:
- tissue -> organ system -> organ -> cell
- organ -> cell -> organ system -> tissue
- cell -> tissue -> organ -> organ system
- organ system -> organ -> cell -> tissue

Could you tell me which one is correct?

cell -> tissue -> organ -> organ system