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Fragmentation
It is seen in multicellular organisms with relatively simple body design. In fragmentation, the body simply breaks into smaller pieces and these pieces grow and mature into new individuals. Eg. Spirogyra
Note:
- Higher multicellular organisms cannot simply grow by cell to cell division because they are not just a random collection of cells.
- In multicellular organisms, specialised cells are organised into tissues, tissues to organs, organs to organ systems and final into the organism.
- Also, different cells perform different functions .Therefore, we need more complex systems for reproduction in these organisms.
