In Which Situation Would a Water Beetle's Gas Bubble Last

question 26

Multiple Choice

In which situation would a water beetle's gas bubble last the shortest amount of time as a functional gill?

• A) Gas bubble = 0.1 atm O₂, 0.75 atm N₂; water = 0.21 atm of O₂
• B) Gas bubble = 0.1 atm O₂, 0.75 atm N₂; water = 0.1 atm of O₂
• C) Gas bubble = 0.2 atm O₂, 0.75 atm N₂; water = 0.1 atm of O₂
• D) Gas bubble = 1 atm O₂; water = 0.21 atm of O₂

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