MAREK MIS / SCIENCE PHOTO LIBRARY MAREK MIS / SCIENCE PHOTO LIBRARY
Polarised light micrograph of two colonies of golden-brown algae (Synura uvella) and a Gymnodinium sp. dinoflagellate (centre). Dinoflagellates have characteristics of both plants and animals. They are mixotrophic, meaning that they combine photosynthesis with ingestion of prey. Each cell of the Synura uvella colonies has two flagella (long hair-like structures) on the outer edge of the colony that are used for locomotion. Magnification: x330 when printed 10 centimetres wide.
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