GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY
Euglena protozoan. Differential interference contrast micrograph of the flagellate protozoan Euglena spirogyra. This freshwater single-celled organism can either obtain energy from sunlight, via photosynthesis, or by absorbing chemicals from its surroundings. A sensory organ, known as the eye spot, or stigma (red), is able to perceive the intensity of light. Magnification: x225 when printed at 10 centimetres wide.
Model release not available. Property release not required.