3. Distinguish between unicellular and multi cellular organisms?
Answers
Answer:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. ... Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions.
Answer:
1. Unicellular organisms are composed of a single cell
Multicellular organisms are composed of more than one cell
2. Unicellular has Simple body organization
Multicellular has Complex body organization
3. A single cell carries out all necessary life processes
Multiple cells perform different functions
4.The total cell body is exposed to the environment
Only the outer cells are exposed to the environment
5. Division of labour is at the organelle level
Division of labour is at cellular, tissue, organs and organ system level
6. Includes both eukaryotes and prokaryotes
Includes only eukaryotes
7. A lifespan of a unicellular organism is usually short
Multicellular organisms have a comparatively longer lifespan
8. Injury to the cell leads to the death of the organism
Injury to a cell does not cause the death of the multicellular organism
9. Asexual reproduction is predominant, however, sexual reproduction is also seen (conjugation)
Reproduction happens sexually as well as asexually
10. Cell differentiation is absent
Cell differentiation is present
11. They can be autotrophs or heterotrophs
They include both autotrophs and heterotrophs
12.They are microscopic in nature
Most are macroscopic in nature
13. Bacteria, amoeba, paramecium and yeast are examples of unicellular organisms
Humans, animals, plants, birds and insects, are examples of multicellular organisms