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    ok guys ** me, I wrote measure the starting length of pondweed and then after a week measure the new height of pondweed at diff light intensities, cuz I thought since they photosynthesise more, they grow more and so they grow taller, cud that still be valid.

    I'd give you 3.. but im not an examiner.

    (Original post by CopyThat)
    I'd give you 3.. but im not an examiner.
    no its not measuring growth this could get you at the most 2 its about measuring the amount of bubbles release by the pondweed in the water at the different intervals with different resolutions from the measurement of the lamp and how far or close it is from the beaker containing the pondweed
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