Biology for IGCSE & O level - Reproduction (Section 6 - No. 15)
Which of the following is a characteristic of the luteal phase of the menstrual cycle?
The follicle develops.
Estrogen levels are high.
Progesterone levels are high.
Ovulation occurs.
Explanation
The luteal phase is characterized by the presence of the corpus luteum, which produces progesterone.
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