Waec Model Questions Vol1 2020 Biology Question 13
Practice objective / multiple choice question 13 from the 2020 Waec Model Questions Vol1 Biology examination.
During a fight‑or‑flight response, adrenaline raises the heart rate by 20 % above a resting rate of 70 beats min⁻¹. Parasympathetic activity simultaneously reduces this increase by 30 % of the adrenaline effect. What is the final heart rate (in beats per minute) after both influences act?
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About This Question
This is Waec Model Questions Vol1 2020 Biology Question 13. It is a objective / multiple choice question from the 2020 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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