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This further highlights the niche which this class of bacteria usually occupies , as the concentration of glucose or phosphate in the ocean is very low while magnesium concentration is generally much higher , suiting the agar-degrading bacteria ’s agarase production ; there is simply no need to use glucose in the ocean , so many organisms do n't .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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