File:Planktonbluegreen tinyones.jpg

Types of Plankton

https://en.wikipedia.org/wiki/Plankton

Plankton organisms include drifting or floating bacteria, archaea, algae, protozoa and animals that inhabit, for example, the pelagic zone of oceans, seas, or bodies of fresh water. Essentially, plankton are defined by their ecological niche rather than any phylogenetic or taxonomic classification...

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Oxygen production

Phytoplankton absorb energy from the Sun and nutrients from the water to produce their own food. In the process of photosynthesis, phytoplankton release molecular oxygen (O2) into the water. It is estimated that between 50% — 85% of the world's oxygen is produced via phytoplankton photosynthesis. The rest is produced via photosynthesis on land by plants.

Phytoplankton photosynthesis controls atmospheric CO2/O2 balance.....

"A single kind of blue-green algae (Prochlorocossus) in the ocean produces the oxygen in one of every five breaths we take"

Prochlorocossus

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Phytoplankton

https://en.wikipedia.org/wiki/Phytoplankton

https://upload.wikimedia.org/wikipedia/commons/thumb/d/da/Phytopla.jpg/220px-Phytopla.jpg

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Zooplankton

https://en.wikipedia.org/wiki/Zooplankton

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