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The difference is that a unicellular organism has one cell and has a shorter life, is much smaller, and has a larger amount of predators. A multicellular organism has a larger size meaning less predators and larger animals, longer life because unlike unicellular organism who just die after losing its only cell a multicellular organism stays alive, and a big difference is multicellular organism have specialized cells like heart muscle cells, and brain cells.

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13y ago

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