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Marine biology - Wikipedia, the free encyclopedia |
 | | The role of phytoplankton is better understood due to their critical position as the most numerous primary producers on Earth. |
| | Phytoplankton are categorized into cyanobacteria (also called blue-green algae/bacteria), various types of algae: red, green, brown, and yellow-green, diatoms, dinoflagellates, euglenoids, coccolithophorids, cryptomonads, crysomonads, chloromonads, prasinomonads, and silicoflagellates. |
| | Zooplankton tend to be somewhat larger, and not all are microscopic. |
| en.wikipedia.org /wiki/Marine_biology (1755 words) |
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