The organism containing only a single cell is called
(a) unicellular organism
(b) multicellular organism
(c) organelle
(d) all of these
Correct Answer: (a) unicellular organism
Explanation:
The organism containing only a single cell is called a unicellular organism. In such cells, single-cell perform the function of excretion, digestion, respiration, etc. Division of labor is not observed in such cells.
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