How would a population of algae in a lake respond to an excess influx of phosphate from runoff, if phosphates are normally found at low levels?
Group of answer choices
The algae would all die and sink to the bottom.
Only the most resistant algae would survive.
There would be no change, because phosphates are not usually a necessary nutrient.
There would be no change, because phosphates are not a limiting factor.
It would increase until either a shortage of phosphates or some other nutrient would again limit their growth.
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