Gce Model Questions Vol1 2021 Biology Question 9
Practice objective / multiple choice question 9 from the 2021 Gce Model Questions Vol1 Biology examination.
In the follicular phase of the menstrual cycle, estrogen concentration rises by \(30\ \text{pg mL}^{-1}\) each day but 10 % of the existing estrogen is cleared each day. Starting from a concentration of 0 pg mL\(^{-1}\) on day 8, on which day does the concentration first reach or exceed the LH‑surge threshold of \(200\ \text{pg mL}^{-1}\)? Give the day number of the cycle.
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This is Gce Model Questions Vol1 2021 Biology Question 9. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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