Question

What is the basic difference between the function of single celled and multiple

celled organisms?

Answer 1

single cell organism doesn't have special organ system for all metabolic activities but multi cell organisms do.
that is the difference

Answer 2

hey buddy... here's your answer...

there is one major difference
in single celled organisms one cell performs different functions like digestion, respiration, excretion, etc . ex . amoeba

in multicellular organisms the cells are grouped into tissues, moreover tissue into organs and then organ system. division of labour is well seen . different systems perform different functions. ex . humans

hope it helps !! ❤️✌️