To measure the rate of organismal respiration, a 1000 mL respirometer was constructed. These measure relative volume as oxygen is consumed by respiring organisms. However, as oxygen gas is consumed during aerobic respiration, it is replaced by $CO_2$ gas at a ratio of one molecule of $CO_2$ for each molecule of $O_2$.
As such, in the following protocol, the $CO_2$ produced is removed by a small piece of cotton treated with potassium hydroxide ($KOH$).
$KOH$ reacts with $CO_2$ to form the solid potassium carbonate ($K_2CO_3$). Over the course of 20 minutes, changes in the volume were measured by following the distance of a red soap bubble placed on the end of a 40 uL capillary tube at time = 0.
Due to the larger sized respirometer, relatively larger sized organisms were used for the setup. What would be the results if equal volumes of an ectotherm (ex. small snake) were compared for oxygen consumption with an endotherm (ex. small mouse), in two different setups?
An external temperature of 10 °C was used in one experimental setup. Another experiment had a temperature of 30 °C. Both experiments used a respirometer with an equal volume of glass beads to represent a control group. External pressure was constant in all cases.
Which of the following would the results from these experiments show?