A researcher is setting up an experiment to measure basal metabolic rate in prairie voles (Microtus ochrogaster-a small rodent). Which of the following would be the best set of conditions for the voles immediately before and during the measurement?
A) House the animals in a cage with plenty of food and water to avoid stress; conduct measurements in a room warmer than the room where housed.
B) House the animals in a cage with plenty of food and water to avoid stress; conduct measurements in a room the same temperature as the room where housed.
C) House the animals in a cage with no food for a few hours before measurement; conduct measurements in a room colder than the room where housed, and exercise the voles.
D) House the animals in a cage with no food for a few hours before measurement; conduct measurements in a room the same temperature as the room where housed.

Question

Quizplus · Accepted Answer

Basal metabolic rate measurements should be taken under conditions that do not stimulate increased metabolic activity. This means the animals should be fasted to ensure that digestion does not affect the measurement, and the temperature should be consistent to avoid metabolic rate changes due to thermoregulation. Exercise should also be avoided as it increases metabolic rate.

A Researcher Is Setting Up an Experiment to Measure Basal