You measure metabolic rates of several four-toed salamanders at 20°C and at 30°C and calculate a Q₁₀ equal to 2 for the species.Based on this information, which statement is true? A) Metabolic rate is not temperature sensitive in this species. B) 30°C must be above the thermoneutral zone for this species. C) This salamander shows acclimatization over this temperature range. D) Metabolic rate at 20°C is twice that at 30°C for this species. E) Metabolic rate at 20°C is half that at 30°C for this species.

Question

Quizplus · Accepted Answer

According to the Q₁₀ of 2 for the species, metabolic rate increases by a factor of 2 when temperature increases from 20°C to 30°C. Therefore, metabolic rate at 20°C must be half that at 30°C for this species. Choice E is correct. The other choices are not supported by the information given in the question.

You Measure Metabolic Rates of Several Four-Toed Salamanders at 20°C