Question

1. what is the difference between unicellular and multicellular organisms?

Explanation:

Unicellular organisms consist of a single cell that performs all life - functions. Multicellular organisms are made of many cells, with cells specialized for different functions and organized into tissues, organs, and organ - systems.

Answer:

Unicellular organisms are made of one cell and perform all life - processes with that single cell. Multicellular organisms are composed of many cells, with cell specialization and organization into higher - level structures.