Yodzis and Innes proposed that large ratios of this variable prevent robust consumer-resource limit cycles. A model derives the power-law dependence of [emphasize] another quantity on this variable based on the flows in a fractal- like vascular network. Energy flux per unit area is invariant with this variable by the energetic-equivalence rule. Sheldon spectra depict the inverse relationship between this variable and oceanic species abundance. J.S. Haldane observed that greater values of this quantity necessitate more complex oxygen transport mechanisms. The West–Brown–Enquist model explains the three-fourths-power allometric scaling of metabolic rate with this variable described by Kleiber’s law. Bergmann’s rule describes how cold-dwelling species exhibit larger values of this quantity, as do many deep-sea species. For 10 points, name this value whose evolutionary extremes are gigantism or dwarfism. ■END■
ANSWER: body size [or body mass; or body length; or body volume; prompt on similar answers without “body”; prompt on descriptions of bigness or synonyms; prompt on size, mass, length, or volume by asking “of what?”; reject “limb length” or equivalents] (Haldane wrote “On Being the Right Size.” The penultimate sentence refers to abyssal gigantism.)
<Biology>
= Average correct buzz position