Waec Model Questions Vol1 2025 Biology Question 1
Practice objective / multiple choice question 1 from the 2025 Waec Model Questions Vol1 Biology examination.
In a 28‑day menstrual cycle the concentration of estradiol (E) in the follicular phase follows the exponential model E = 30·e^{k·d}, where d is the day number (d = 1 for the first day of the cycle). On day 7 the measured estradiol concentration is 80 pg·mL⁻¹, and ovulation occurs 2 days after estradiol first reaches the threshold value of 200 pg·mL⁻¹. On which day of the cycle does ovulation occur?
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This is Waec Model Questions Vol1 2025 Biology Question 1. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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