RM
Nitzschia sigmoidea and gomphonema algae, light micrograph
Nitzschia sigmoidea and gomphonema algae, polarised light micrograph. These are types of diatoms, single-celled photosynthetic algae, of which there are about 100,000 species. They have mineralised cell walls that contain silica and provide protection and support. They form an important part of the plankton at the base of the marine and freshwater food chains. Magnification: x186 when printed 10 centimetres wide., by MAREK MIS/SCIENCE PHOTO LIBRARY
More
Top Categories