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(C) Physiological division of labour refers to the specialization of different cells or body parts to perform specific functions. In multicellular org

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Protozoa

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(C) Physiological division of labour refers to the specialization of different cells or body parts to perform specific functions. In multicellular organisms,such as members of Phylum $Cnidaria$ (e.g.,$Anthozoa$,$Hydrozoa$,$Aurelia$),there is a clear division of labour among cells and tissues. However,$Protozoa$ are unicellular organisms. Since their entire body consists of a single cell,all physiological functions (like digestion,respiration,and excretion) are performed by the same cell using different organelles. Therefore,they do not exhibit physiological division of labour at the tissue or organ level.

Physiological division of labour is almost not shown by the animals belonging to

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