This microorganism is a vital part of the biosphere. It is a species of plankton, which drift in the sunlit surface layers of oceans around the world. Plankton are one of the producers in the ocean food web, providing nutrients for animals from shrimp to whales.

Photograph by Johan Decelle, MyShot
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biosphere Encyclopedic Entry

Best For
5 - 12 and up

Earth Science, Geography

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The biosphere is made up of the parts of Earth where life exists. The biosphere extends from the deepest root systems of trees to the dark environment of ocean trenches, to lush rain forests and high mountaintops.