The Whole Lake Fertilization Experiments Conducted by David Schindler and Colleagues

question 218

Multiple Choice

The whole lake fertilization experiments conducted by David Schindler and colleagues in Ontario, Canada, did all of the following except

• A) trigger a campaign to ban phosphates in detergents.
• B) involve controlled experiments in natural ecosystems.
• C) identify phosphorus as the major cause of cyanobacteria and phytoplankton blooms.
• D) lead to recommendations to remove phosphates from water during sewage treatment.
• E) lead to the conclusion that nitrogen and carbon were not required for algal growth.

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Definitions:

Field Diameter

The visible area observed through the microscope lens; its size depends on the magnification power.

High-powered Objective

An objective lens used in microscopy with high magnification capabilities, allowing for the detailed observation of minute specimens.

Micrometers

Units of length in the metric system equal to one millionth of a meter, commonly used in science and engineering for precise measurements.

μm

Micrometer, a unit of length in the metric system equal to one millionth of a meter, used to measure small distances, such as those in biological cells and structures.