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Which laboratory procedure would be best for demonstrating the effect of light intensity on the production of chlorophyll in pea plants
A.using 10 plants of different species,each grown in the same intensity light.
B.using 10 plants of different species,each grown in a different intensity light.
C.using 10 plants of the same species,each grown in the same intensity light.
D.using 10 plants of the same species,each grown in a different intensity light.