Question

Difference between unicellular and multicellular

Answer 1

Unicellular organism is composed of only one cell and has a simple body structure.... Multicellular organism is composed of many cells and has a complex body structure....

Answer 2

          Difference between unicellular and multicellular:

Unicellular:

• Single-celled organisms
• Organelles are not membrane-bound
• Cellular functions or processes undertaken only by the single cell
• The lone single cell is directly exposed to the environment
• Lifespan is Shorter
• Visible only under a microscope
• Transportation of nutrients - Simple diffusion
• Asexual reproduction - Binary fission
• Sexual reproduction - Conjugation
• Examples - Amoeba, Paramecium, Euglena.

Multicellular:

• Organisms with multiple cells.
• Membrane-bound organelles
• Multicellular well-differentiated organ systems that perform specific functions.
• Only the external cells are exposed to the environment.
• Lifespan is Longer
• Visible through naked eyes
• Transportation of nutrients - Diffusion and active and passive transport
• Asexual reproduction - Asexual
• Sexual reproduction - Gamete production
• Examples  - Animals and plants.