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  1. Consider the following statements
    1. In birds, heart is four chambered
    2. In reptiles, respiration is done through skin
    3. Earth worm are harmaphrodites
    Which of the statements given above is / are correct?
    1. 1 and 2
    2. 1 and 3
    3. 3 only
    4. 1, 2 and 3
Correct Option: B

N/A


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