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The pelagic food web, showing the central involvement of marine microorganisms in how the ocean imports nutrients from and then exports them back to the atmosphere and ocean floor. A marine food web is a food web of marine life. At the base of the ocean food web are single-celled algae and other plant-like organisms known as phytoplankton.
Contributing between 1 and 10% of total ocean primary productivity, 200 species of coccolithophores live in the ocean, and under the right conditions they can form large blooms. These large bloom formations are a driving force for the export of calcium carbonate from the surface to the deep ocean in what is sometimes called “Coccolith rain”.
Older adults, however, need more important protein to help maintain muscle and bone mass, which can mean going up to 1.8 grams of protein per kilogram of bodyweight per day.
Phytoplankton need nitrogen in biologically available forms for the initial synthesis of organic matter. Ammonia and urea are released into the water by excretion from plankton. Nitrogen sources are removed from the euphotic zone by the downward movement of the organic matter. This can occur from sinking of phytoplankton, vertical mixing, or ...
It may be because you aren't eating enough protein. And you're not alone: Millions of people in the world aren't either. Why do we need protein? For starters, it's critical for transporting oxygen ...
Protein is the macronutrient du jour and protein powder, a supplement historically and stereotypically reserved for bodybuilders and young men looking to grow muscle, has gone mainstream.
The ocean represents the largest continuous planetary ecosystem, hosting an enormous variety of organisms, which include microscopic biota such as unicellular eukaryotes (protists). Despite their small size, protists play key roles in marine biogeochemical cycles and harbour tremendous evolutionary diversity.
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