PLEASE PARAPHRASE THIS:
One way to determine net and gross primary productivity in a freshwate...
Biology, 02.04.2020 03:06 melisa141b
PLEASE PARAPHRASE THIS:
One way to determine net and gross primary productivity in a freshwater ecosystem is to first take equal-volume samples of pond water. Determine the dissolved-oxygen content of each. Expose one sample to light and one sample to zero light. Leave the samples alone for 24 hours; measure the dissolved-oxygen content again, and determine the differences in dissolved-oxygen content. The first difference is gross productivity; the first minus the second is net productivity.
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