FRANK FOX / SCIENCE PHOTO LIBRARY FRANK FOX / SCIENCE PHOTO LIBRARY
Differential interference contrast light micrograph of a volvox sp. colony. Volvox are small, colonial green algae that make up a larger spherical colony, almost acting as a multicellular organism. The bright green sphere within the colony is a daughter colony. Magnification: x300 when printed 10 centimetres wide.
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