When Biologists Hetz and Bradley Measured the Oxygen Concentration Inside

question 27

Multiple Choice

When biologists Hetz and Bradley measured the oxygen concentration inside the tracheae of Atlas moth pupae,what hypotheses were they testing?

• A) Discontinuous breathing protects against too much oxygen.
• B) Discontinuous breathing decreases water loss.
• C) Discontinuous breathing helps underground insects avoid high levels of carbon dioxide.
• D) Discontinuous breathing saves energy by not moving the diaphragm.
• E) Discontinuous breathing is harmful because less oxygen is taken up.

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