How is the structure of a unicellular organism different than the structure of a multicellular organism? how does this affect function

Multicellular organisms can be much larger and more complex. This is because the cells of the organism have specialised into many different types of cells such as nerve cells, blood cells, muscle cells all performing different functions

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah