what is a unicellular organism?
A unicellular organism is a living organism made up of only one cell. This single cell performs all the essential life processes, including nutrition, respiration, growth, excretion, and reproduction.
Examples of Unicellular Organisms:
Amoeba
Paramecium
Euglena
Bacteria
Yeast
Key Characteristics:
Consist of a single cell.
Usually microscopic in size.
One cell carries out all life functions.
Reproduce mainly through asexual methods such as binary fission.
Example:
An Amoeba captures food, digests it, moves, and reproduces using just one cell.
In simple terms: A unicellular organism is a living thing made of a single cell that performs all the activities needed for survival.