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Figure 7


Fig. 7. Effect of x-ray beam on CO2 release in Pterostichus stygicus. Traces from two specimens are shown, depicting extremes of the response to irradiation. The beetle (mass 219.5 mg) in A shows no change in average CO2 pulse frequency (15.7 min–1) or volume (0.013 µl), whereas the beetle (mass 166.3 mg) in B shows an increase in both frequency (8.1 to 16.2 min–1) and volume (0.004 to 0.024 µl).





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