Waec Model Questions Vol1 2024 Biology Question 19
Practice objective / multiple choice question 19 from the 2024 Waec Model Questions Vol1 Biology examination.
Two desert-dwelling mammals employ different adaptations to conserve water. Species A: a thick cuticle reduces transpiration to 40 % of the normal rate, and nocturnal activity reduces the time exposed to the sun by 30 %. Species B: specialized salt‑glands lower the water needed for osmoregulation by 20 %, and burrowing lowers body temperature by 5 °C. The metabolic rate changes with temperature according to Q₁₀ = 2 (i.e., a 10 °C change doubles the rate). Assuming the adaptations act independently and that the baseline water loss is 100 units, which species achieves the greater overall percentage reduction in water loss, and what is that percentage?
Answer Options
About This Question
This is Waec Model Questions Vol1 2024 Biology Question 19. It is one of the objective questions from the 2024 Waec Model Questions Vol1 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.