Neco 2025 Biology Question 23
Practice objective / multiple choice question 23 from the 2025 Neco Biology examination.
During intense exercise a person loses heat by sweating and by cutaneous vasodilation. Sweating evaporates \(0.8\ \text{g}\) of water per \(\text{cm}^2\) of skin each minute, and the latent heat of vaporisation of water is \(2.43\ \text{kJ}\,\text{g}^{-1}\). The skin surface area is \(1500\ \text{cm}^2\). Vasodilation increases blood flow that can remove \(5\ \text{kJ}\) of heat per minute for every \(100\ \text{cm}^2\) of skin. Which mechanism removes more heat per minute, sweating or vasodilation? State "Sweating" or "Vasodilation".
Answer Options
About This Question
This is Neco 2025 Biology Question 23. It is one of the objective questions from the 2025 Neco Biology examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.