Answer:
Unicellular Organism (Single Celled Organism):
- They contain a single cell in their body.
- They are only visible under the microscope.
- Their life spam is comparatively short.
For example: Amoeba, Paramecium, etc.
Multicellular Organism:
- They contain numerous cells in their body.
- They can be seen with our naked eyes
- Their life spam is comparatively long.
For example: Human, Birds, etc.
