Question

Why do multicellular organism use complex way of reproduction?

Answer 1

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Explanation: Multicellular organisms cannot reproduce by cell because they are not simple random collection of cells. ... Cell-by-cell division would be impractical. Multicellular organisms, therefore, require to use more complex ways of reproduction.

Answer 2

Answer:

Complex multicellular organisms are not a random collection of cells. In them, cells are organised into specialised groups/tissues, organs and/or systems, each of which occupy specific locations in the body. In such an organised condition, cell-by-cell division would be impossible. Hence multicellular organisms need complex methods of reproduction.