Final answer:
The rmax of a flea is greater than that of an elephant due to their different rates of reproduction. This affects the time scale used to study population changes.
Step-by-step explanation:
The value "r" represents the intrinsic rate of increase, or the potential for reproduction, for a species. In this case, rmax refers to the maximum growth rate for a species. Fleas reproduce at a faster rate than elephants, so the rmax would be greater for a flea. This means that fleas have a higher intrinsic rate of growth. As a result, a shorter time scale would be used to study changes over several flea generations compared to several elephant generations.