Question

Define unicellular organisms.

Answer 1

Unicellular organisms:

1. These are the organisms that are made up of a single cell only.
2. The single-cell constitutes the structure, and shape of the organism and carries out all the functions needed by the organism.
3. Most unicellular organisms are microscopic in nature and are thus classified as microorganisms.
4. They do not require food.
5. Some of the unicellular organisms are bacteria, archaea, etc.