MAREK MIS / SCIENCE PHOTO LIBRARY MAREK MIS / SCIENCE PHOTO LIBRARY
Bright field light micrograph of a Keratella sp. rotifer. It is a footless rotifer that possesses a protective shell, or lorica. It is surprisingly complex on the inside: it has a brain, reproductive organs, a bladder and a digestive system. It is omnivorous, eating bacteria, debris or small protozoans. Magnification: x330 when printed 10 centimetres tall.
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