Caulerpa is a large green algae that appears to be multicellular because it is organized into different parts, seemingly leaves, stems and roots. But it is actually just a single large cell. And since...Caulerpa is a large green algae that appears to be multicellular because it is organized into different parts, seemingly leaves, stems and roots. But it is actually just a single large cell. And since an individual organism might be two meters in extent, Caulerpa produces the largest cells on earth, except for maybe some plasmodial slime molds. They are mostly found in shallow waters in warmer oceans but a few occur in fresh water.
