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    Biology Exploring Study Set 1
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    Exam 44: Animal Reproduction
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    What Needs to Happen for Menstruation to Begin
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What Needs to Happen for Menstruation to Begin

Question 120

Question 120

Multiple Choice

What needs to happen for menstruation to begin?


A) Estrogen levels must rise.
B) FSH and LH levels must rise.
C) GnRH levels must fall.
D) Progesterone levels must fall.

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