Answer:
A cell is the smallest unit of life.
Step-by-step explanation:
Cell is the smallest and basic unit of all living organisms. Some organisms are unicellular i. e. made of one cell and some organisms are multicellular i. e. made of more than one cell. In Unicellular organisms, single cell perform all functions and activities of the cell such as excretion, reproduction and digestion etc, while in multicellular organisms, there are specific cells for each activity.