the highest levels of marine primary productions occur in terrestrial ecoregions.
where do the highest levels of marine primary productions occur?
terrestrial ecoregions
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primary producers are the autotroph organisms that make their own food instead of eating other organisms. this means primary producers become the starting point in the food chain for heterotroph organisms that do eat other organisms. some marine primary producers are specialised bacteria and archaea which are chemotrophs, making their own food by gathering around hydrothermal vents and cold seeps and using chemosynthesis. however most marine primary production comes from organisms which use photosynthesis on the carbon dioxide dissolved in the water. this process uses energy from sunlight to convert water and carbon dioxide into sugars that can be used both as a source of chemical energy and of organic molecules that are used in the structural components of cells. marine primary producers are important because they underpin almost all marine animal life by generating most of the oxygen and food that provide other organisms with the chemical energy they need to exist.
marine life