WIM VAN EGMOND / SCIENCE PHOTO LIBRARY WIM VAN EGMOND / SCIENCE PHOTO LIBRARY
Daphnia water flea, dark-field illumination light micrograph. Water fleas are small crustaceans, commonly found in fresh water. They are filter feeders that ingest algae, protozoa or organic matter, and are a constituent of plankton. This view shows the compound eye, the digestive system (green) with digested algae, and the developing eggs. Daphnia water fleas reproduce through parthenogenesis (female asexual reproduction). Magnification: x35 when printed 10 centimetres high.
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