Question

what organisms represente are multicellular

Answer 1

Multicellular organisms are organisms that consist of more than one cell, in contrast to unicellular organisms that have 1 cell. All mammals, fish... are multi cellular. We are too! (Obviously) :) 

Answer 2

Mulit-celluar organisms are like us, humans and animals that have many cells. An example of a unicellular organism is yeast.