Answer:
How many cells are in the organism will help the scientist decide if the organism is unicellular or multicellular.
Step-by-step explanation:
How many cells are in the organism will help the scientist decide if the organism is unicellular or multicellular because A unicellular organism is an organism that have one cell or it is single celled organism while a multicellular organism have many cells present or it is comprises of many cells.
The number of cells will determine if the organism is single cell or multicellular.