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    ​A researcher examined the features of newly hatched birds. Species A showed open eyes, down feathers and was able to move around. Species B lacked do
    Question

    A researcher examined the features of newly hatched birds. Species A showed open eyes, down feathers and was able to move around. Species B lacked down feathers and was incapable of walking and its eyes were closed. Given this, choose the correct option.

    A.

    Species A is altricial and species B is precocial

    B.

    Species A is precocial and species B is altricial

    C.

    Species A and B are both precocial

    D.

    Species A and B are both altricial

    Correct option is B

    Explanation-

    Precocial birds:
           1.   Hatch with open eyes
           2.   Covered in down feathers
           3.   Able to walk/move shortly after hatching
           4.   More independent
    Examples: Ducks, chickens, quail

    Altricial birds:
           1.   Hatch with closed eyes
           2.   Naked or minimal feathers
           3.   Cannot walk or move much
           4.   Depend on parents for warmth and feeding
    Examples: Songbirds, pigeons, hawks

    Species A:  Precocial
            Open eyes - Yes 
            Down feathers - Yes 
            Able to move  -  Yes
    Species B: altricial
            Eyes closed 
            No feathers 
            Immobile 

    Species A is precocial, and Species B is altricial.

    So, the correct answer is option b -  Species A is precocial and species B is altricial.

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