MAREK MIS / SCIENCE PHOTO LIBRARY MAREK MIS / SCIENCE PHOTO LIBRARY
Spirogyra sp. green algae. Polarised light micrograph of spirogyra sp. green algae. Spirogyra forms slimy threads in stagnant or slow moving water and is named for its spiral chloroplasts (diagonal) found within each cell. Magnification: x400 when printed 10 centimetres wide.
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