I do believe you may be on to something here! As long as the daisy is well watered and the chamber is not too humid, she can cool herself off for a while by evaporative transpiration (call it plant sweat, if you like), but I don't think the scale are so lucky (they are built to conserve moisture, not evaporate it).Indeed they can't, Tim. In fact, with very rare exceptions, only warm-blooded creatures can sweat.
And a big advantage of heating over suffocating, is that reasonably accurate thermometers are *way* cheaper than oxygen sensors.
"No, Mr. Arthropod. I expect you to die!"