Which of the following organisms are known as chief producers in the ocean?
A
Cyanobacteria
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B
Diatoms
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C
Dinoglagellates
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D
Euglenoids
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Solution
The correct option is B Diatoms Diatoms are chief producers in the oceans. Dinoflagellates are marine but they are responsible for red tides and they also release toxins that kill marine animals such as fish. Majority of euglenoids are freshwater organisms found in stagnant water.