A 3-Hectare Lake in the American Midwest Suddenly Has Succumbed

question 9

Multiple Choice

A 3-hectare lake in the American Midwest suddenly has succumbed to an algal bloom. What is the likely cause of this in freshwater ecosystems?

• A) increased solar radiation
• B) introduction of nonnative tertiary consumer fish
• C) nutrient runoff
• D) accidental introduction of a prolific culture of algae
• E) iron dust blowing into the lake

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Definitions:

Puncture Site

The specific location on the body where a needle or sharp instrument is inserted or penetrated, such as for a blood test or to administer medication.

Erythrocyte Sedimentation Rate

A blood test that measures how quickly red blood cells settle at the bottom of a test tube, which can help detect inflammation in the body.

Inflammatory Process

The body's response to injury or infection, characterized by redness, warmth, swelling, and pain.

Anemia

A condition characterized by a deficiency of red blood cells or hemoglobin in the blood, leading to fatigue, weakness, and various other health issues.