Fig. 3. Mass scaling of rate of CO₂ emission (_CO2 in µl h^–1) in Zootermopsis nevadensis prior to hyperoxia (open circles), shortly after exposure to hyperoxia (closed circles), ca. 30 min after exposure to hyperoxia (open squares), shortly after re-establishment of normoxia (closed squares) and ca. 30 min after re-establishment of normoxia (crosses); N=21, all at 15°C. By ANCOVA, all lines share a common slope or mass scaling exponent of 0.688(F_[4,95]=0.59; P>0.3). The intercepts, however, differed significantly (F_[4,99]=109.7, P<10^–12). The mass scaling coefficients are, respectively, 89.7, 27.0, 69.8, 197.7, and 53.1 with _CO2. in units of µl h^–1.