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NEET Biology Ecosystem Question Bank Self Evaluation Test - Ecosystem

  • question_answer
    Blue whale, which inhabits Antarctica, has a requirement of more than a million calories per day. Which one of the following planktonic organisms forms the bulk of food to fulfill its caloric requirement?

    A) Dinoflagellates

    B) Diatoms

    C) Green algae

    D) Krill

    Correct Answer: D

    Solution :

    [d] Krill (Euphausia superba) is the only answer to fulfil the caloric requirement of whale, because it is rich in protein and fat. 1 Ib of krill yields at least 460 calories. Its production in the total area of Antarctica is approximately 1350 million tons and feeding requirement for the total population of whale (half a million consuming 3 tones of krill per day for six months) is around 270 million tons of krill.


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