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Biology, 03.04.2021 21:10, melissareid65
(c) Copper(ll) ions (Cu2+) inhibit the function of a proportion of the chlorophyll a present in
single-celled, photosynthetic protoctists.
The concentration of functional chlorophyll a in these organisms was measured in two
different months of the same year in an unpolluted lake and in a lake polluted with
copper ions.
The results are shown in Table 3.1.
Lake
Table 3.1
Concentration of functional chlorophyll al ug dm-3
Month A
Month B
3.45
0.24
1.79
0.24
Unpolluted
Polluted with copper ions
Describe and suggest explanations for the results shown in Table 3.1.
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Answers: 3
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Biology, 22.06.2019 07:00, thomasalmo2014
Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs
Answers: 1
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