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Scientists are looking to determine the primary productivity of a lake by analyzing its oxygen net primary productivity. How are scientists able to measure how much oxygen is used during a plant’s cellular respiration processes?(1 point)by observing cellular respiration under bright light conditionsby observing cellular respiration only when photosynthesis occursby observing cellular respiration under the absence of lightby observing cellular respiration by studying biomagnification
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by observing cellular respiration under the absence of light
Explanation: In the dark photosynthesis stops, so any decrease in O2 is due to respiration. Measuring O2 use in darkness lets scientists quantify oxygen consumed by plant respiration and calculate net primary productivity (O2 produced in light minus O2 consumed in dark).
Explanation: In the dark photosynthesis stops, so any decrease in O2 is due to respiration. Measuring O2 use in darkness lets scientists quantify oxygen consumed by plant respiration and calculate net primary productivity (O2 produced in light minus O2 consumed in dark).
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