How would the organization of a single celled organism to a multicellular organism the same

They both contain multiple systems, which can be called organs or organelles, to function.

Explanation:

A single cell contains multiple small organs, called organelles, that give it energy and allow it to function as a living creature. Multicellular organisms are larger-scale versions of single-celled organisms, and while each cell has its own organelles, the larger organism has organs (such as the heart and lungs).