This brief and comic video of the marine food chain explains the relationship of ocean species in this underwater feeding hierarchy.  As it describes, phytoplankton are the most abundant species that are typically found near the top of the water so they can photosynthesize using the sun’s energy.  Zooplanktons then consume the phytoplankton, which marks them as the second level within the food chain.  Further, smaller fish eat the zooplankton to then be eaten by larger fish.  At the top of the ocean food chain are the large marine animals, such as sharks, dolphins, and sea turtles, which consume these bigger fish.   
                The food chain is a circle of life in which all components, the types of species, are necessary for the cycle.  It is a crucial part of environmental processes and an essential sequence to keep the cycle continuous and the animals alive.  Even though we are not part of the marine food chain, humans are part of a complex food chain as well!

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