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Updated: May 3, 2025
Volvox may be compared to a hollow sphere, the wall of which is made up of coherent Chlamydomonads; and which progresses with a rotating motion effected by the paddling of the multitudinous pairs of cilia which project from its surface. Each Volvox-monad, moreover, possesses a red pigment spot, like the simplest form of eye known among animals.
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