Variation in Number: Bodies of organisms may consists of one or many cells.
Unicellular Organism |
Multicellular Organism |
A single cell constitutes the whole organism. |
Multiple cells are grouped together in a single body which assume different functions in the body to form various body parts |
In a unicellular organism, a single cell performs vital activities like feeding, movement, respiration, and reproduction. |
All cells are specialised to perform different functions of the multicellular body |
E.g. Amoeba, Paramoecium, Bacteria etc |
E.g. Fungi, Plants, Animals including Humans. |
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Which of the following is a unicellular organism? | |||
Right Option : A | |||
View Explanation |
Which of the following are correct : (a) In a unicellular organism, a single cell performs vital activities like feeding, movement, respiration, and reproduction. (b) There is no division of labour in prokaryotic unicellular organism but it may be seen within the cell in eukaryotic organism. (c) There is no division of labour in eukaryotic unicellular organism but it may be seen within the cell in prokaryotic organism. | |||
Right Option : A | |||
View Explanation |
___________________ is a multicellular organism. | |||
Right Option : D | |||
View Explanation |
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