Neco 2019 Biology Question 21
Practice objective / multiple choice question 21 from the 2019 Neco Biology examination.
Plant A opens its stomata for \(6\) h each night, losing water at a rate of \(0.5\) g h\(^{-1}\). It fixes carbon at \(2\) mg h\(^{-1}\). Plant B opens its stomata for \(4\) h at a rate of \(0.8\) g h\(^{-1}\) and fixes carbon at \(2.5\) mg h\(^{-1}\). Water‑use efficiency (WUE) is defined as total carbon fixed (mg) divided by total water lost (g). Which plant has the higher WUE and therefore a more effective drought‑avoidance adaptation?
Answer Options
About This Question
This is Neco 2019 Biology Question 21. It is one of the objective questions from the 2019 Neco Biology examination.
Difficulty level: Hard .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.