Eutrophic lakes typically support ten times the microbial concentrations of an oligotrophic lake. Which of the following statements is NOT true of eutrophic lakes?
A) Biochemical oxygen demand is high.
B) Population of aquatic animals is high.
C) Nitrogen and phosphorous levels are usually high.
D) Photosynthetic activities are altered.
E) Algal blooms are common.

Question

Quizplus · Accepted Answer

Eutrophic lakes may have high microbial concentrations and nutrient levels, but this does not always translate to high populations of aquatic animals. Eutrophication can also lead to decreased dissolved oxygen levels, which can harm fish populations.

Eutrophic Lakes Typically Support Ten Times the Microbial Concentrations of an Oligotrophic