Multicellular
Multicellular explained in an easy to understand way:
Imagine trying to put together a large, complex jigsaw puzzle without knowing what the final picture should look like. Just as each puzzle piece has its own unique shape and fits into a specific place to create a complete image, in a multicellular organism, each cell has a specific role and function that contributes to the whole organism. The connection here is that just like each puzzle piece is crucial for completing the picture, each cell in a multicellular organism plays a vital part in maintaining the life and functionality of the entire organism, with animals, plants, and fungi being perfect examples of these intricate cellular 'puzzles'.
Practice Version
Multicellular: An organism that is made up of many cells, like all animals, plants, and fungi. Multicellular means having many cells that work together to make up a living thing.