Amoeba is an example of a multicellular organism.
Explanation:
- Amoeba is a type of single-celled organism known as a protist.
- It belongs to the group of organisms called unicellular organisms, which means they are composed of a single cell.
- Multicellular organisms, on the other hand, are composed of multiple cells that work together to form tissues, organs, and organ systems.
- Examples of multicellular organisms include animals, plants, and fungi.
- Amoeba, being a single-celled organism, does not fit into the category of multicellular organisms.
- It lives as a single cell and carries out all its necessary functions within that single cell.
- Amoeba reproduces asexually by a process called binary fission, where one cell divides into two identical daughter cells.
- It does not have specialized cells or tissues like multicellular organisms do.
- Therefore, the statement that Amoeba is an example of a multicellular organism is false.

Understanding Amoeba
Amoeba is often misunderstood due to its complex behavior and structure. Here’s a detailed explanation of why it is classified as a unicellular organism.
What is an Amoeba?
- Amoeba is a genus of single-celled organisms.
- It belongs to the group called protozoa.
Characteristics of Amoeba
- Single Cell: Amoeba is composed of just one cell, which performs all necessary functions for life.
- Shape: It has an irregular shape and can change its form due to the flowing nature of its cytoplasm.
Functionality of a Unicellular Organism
- Self-Sufficient: As a unicellular organism, all life processes such as respiration, digestion, and reproduction occur within this single cell.
- Movement: Amoeba moves and feeds using extensions called pseudopodia, which are temporary projections of the cell.
Comparison with Multicellular Organisms
- Multicellular Definition: Multicellular organisms are composed of multiple cells that work together, often with specialized functions.
- Lack of Specialization: Unlike multicellular organisms, amoebae do not have specialized cells or tissues.
Conclusion
In conclusion, amoeba is a classic example of a unicellular organism, not a multicellular one. Its ability to perform all life functions within a single cell distinguishes it from organisms that have complex structures and multiple cells working in harmony. Thus, the correct answer to the question is option 'B', indicating that amoeba is not a multicellular organism.