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diatoms
fish
phytoplankton provide most of the oxygen to earth.
Euphotic zones that are able to support life well because they are in the uppter layer of the ocean where the sun's rays penetrate, and the phytoplankton are most common in this area that makes fish and other sea animals eat them as their food.
Plain area are most productive for farmaers
what day of the week are employees most productive
phytoplankton
Virus
Sexual reproduction is possible in phytoplankton, although cells most often reproduce asexually by splitting in two.
Phytoplankton.
Phytoplankton are the autotrophs that are the main producers for the upper layers of the ocean.This is because the upper layers of the ocean provide the most sunlight, which is what phytoplankton need in order to perform photosynthesis.