Which outcome limits carbon fixation when a plant's stomata close during drought conditions?

💡 Explanation

When stomata close during drought, CO2 decreases and O2 increases in the leaf; rubisco acts as an oxygenase by photorespiration impacting carbon fixation. Therefore, rubisco's oxygenase activity increases, rather than chlorophyll degradation, ATP synthase decrease, or electron transport inhibition, issues requiring different initiating conditions.

• Which outcome increases mortality during prolonged predator pursuit?
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