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(D) According to Blackman's Law of Limiting Factors,if a physiological process is controlled by several factors,the rate of the process is limited by

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Water

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(D) According to Blackman's Law of Limiting Factors,if a physiological process is controlled by several factors,the rate of the process is limited by the factor present in the lowest concentration relative to its optimum requirement.In this scenario,temperature,light,and $CO_2$ are provided at optimal levels,meaning they are not limiting the process.Since water is supplied in limited amounts,it becomes the limiting factor.Therefore,the rate of photosynthesis will be determined by the availability of water.

If a plant is provided with optimal temperature,light,and $CO_2$ for photosynthesis,but water is supplied in limited amounts,the rate of photosynthesis will follow which of the following factors?

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