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Fig. 2. Validation of alternative regression models derived from analyses
summarized in Fig. 1. (A)
Equations fitted to data by non-linear regression (solid black line) and by
back-transformation from logarithms (dashed red line) are displayed together
in a double logarithmic plot. (B) Equations fitted to data by non-linear
regression (solid black line) and by back-transformation from logarithms
(dashed red line) are displayed together in an arithmetic plot. (C) Arithmetic
values for BMR are displayed against values for mass on a log scale. The
upward trajectory for the lines is a consequence of the semi-log plot. The
inset expands that part of the scale for animals weighing between 100 and
10,000 g.