According to the diagram above, an area of the ocean has __________ producers. These producers are surface dwelling ________ that make their own food through________. How can 5000______ only support half a tuna? Energy gets used up at each level and only ______ is able to move to the next level as it is used to maintain life or given off as heat waste.

According to the diagram above, an area of the ocean has primary producers. These producers are surface dwelling phytoplankton that make their own food through photosynthesis. How can 5000 phytoplankton only support half a tuna? Energy gets used up at each level and only 10% is able to move to the next level as it is used to maintain life or given off as heat waste.