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7th Class Science Transportation in Animals and Plants Question Bank Transportation in Animals and Plants

  • question_answer
    DIRECTIONS: Read the passage (s) given below and answer the questions that follow Passage - 3 Excretory system varies in different animals some animals live in water and so their waste product is ammonia which directly dissolve in water. Which animals excrete wastes in the form of ammonia?

    A) humans                       

    B) birds

    C) fish                              

    D) all of these

    Correct Answer: B

    Solution :

    birds


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