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    The graph shows three hormones circulating during pregnancy in the rat, with birth occurring at 22 days.

    Question
    HLPaper 1A

    The graph shows three hormones circulating during pregnancy in the rat, with birth occurring at 22 days.

    What are hormones X and Z ?

    XZ
    estrogenLH
    oxytocinprogesterone
    LHestrogen
    progesteroneprolactin

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