(→Hydras) |
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[[File:2j7mpm6c-1403014140.jpg|200px]] | [[File:2j7mpm6c-1403014140.jpg|200px]] | ||
==='''Diatoms'''=== | |||
Microalgae who generate about 40% of the oxygen produced on the planet each year. They are unicellular microorganisms and can take the shape of ribbons, starts, fans, zigzags and can be radially symmetric or bilaterally symmetric. You can find them in oceans, seas, lakes, streams and soils. They are commonly used in studies of water quality. | |||
[[File:diatomee.jpg|200px]] | |||
''18/11/2020'' | ''18/11/2020'' | ||
==='''Research: polarized light microscopy'''=== | ==='''Research: polarized light microscopy'''=== | ||