A grouping of two live Chlamydomonas cells at 1,000x magnification. The cells are flagellated, though the flagella are not visible. (Marc Perkins, CC BY-NC 2.0)
A grouping of two live Chlamydomonas cells at 1,000x magnification. The cells are flagellated, though the flagella are not visible. (Marc Perkins, CC BY-NC 2.0)