What causes menstruation to begin?
Answer and explanation
Correct answer: C. A fall in progesterone and estrogen levels
- Step 1: When the corpus luteum degenerates, the uterine lining is shed.
Answer
A fall in progesterone and estrogen levels.
Why not the others: A rise in hormones would maintain the lining.
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More Reproductive Systems and Development questions
- Which structure carries sperm from the epididymis toward the urethra?
- Which hormone does the developing embryo secrete to maintain the corpus luteum?
- Which hormone triggers ovulation with a sharp peak in the middle of the menstrual cycle?
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- Which structure produces progesterone after ovulation?
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