
Figure 33.2
Use the following information when answering the corresponding question(s) .
Many terrestrial arthropods exchange gases with their environments by using tracheae,tubes that lead from openings (called spiracles) in the animal's exoskeleton or cuticle directly to the animal's tissues.Some arthropods can control whether their spiracles are opened or closed;opening the spiracles allows the carbon dioxide produced in the tissues to travel down the tracheae and be released outside the animal.Klok et al.measured the carbon dioxide emitted over time (represented by VCO₂) by several species of centipedes.Figure 33.2 presents graphs of their results for two species,Cormocephalus morsitans and Scutigerina weberi.(C.J.Klok,R.D.Mercer,and S.L.Chown.2002.Discontinuous gas-exchange in centipedes and its convergent evolution in tracheated arthropods.Journal of Experimental Biology 205:1019-29. )

-Compare the graphs in Figure 33.2 of CO₂ emission for Cormocephalus morsitans and Scutigerina weberi.What hypothesis can you make about each centipede's habitat?
A) C) morsitans lives in a habitat that provides more carbon dioxide than does S.weberi.
B) C) morsitans lives in a habitat with more predators than does S.weberi.
C) C) morsitans lives in a colder habitat than does S.weberi.
D) C) morsitans lives in a drier habitat than does S.weberi.
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Q3: What would be the best anatomical feature
Q17: The major evolutionary split of protostome animals
Q18: Figure 33.1 Q19: A _ is comprised of a mouth Q20: In adult arthropods,the hemocoel performs which of Q21: Figure 33.2 Q23: Figure 33.2 Q26: What is not true of all arthropods? Q27: What is the only group of Mollusca Q28: Which adaptation is unique to insects among
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Use the following information when answering
Use the following information when answering
A)They
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