Question

In organisms, all life activities are carried out within a single cell.

Answer 1

Cell:

1. A cell is the smallest living unit that can exist independently and perform all life activities.
2. Unicellular organisms are made up of single cell.
3. In unicellular organisms, all life activities are carried out within a single cell.
4. Example, Amoeba, Euglena, Paramecium, and bacteria.

Final answer: In unicellular organisms, all life activities are carried out within a single cell.