ERIC GRAVE / SCIENCE PHOTO LIBRARY ERIC GRAVE / SCIENCE PHOTO LIBRARY
Light micrograph of a dinoflagellate Ceratium tripos from the flagellate group of protozoa. Found in both freshwater & saltwater, dinoflagellates can feed either like plants (photosynthesis) or like animals (taking in preformed food such as algae, diatoms) or like both.
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