Which of the Following Is an Unintended Ecological Consequence of Human

question 15

Multiple Choice

Which of the following is an unintended ecological consequence of human waste that is processed in water treatment facilities, and then discharged as effluent in rivers near cities?

• A) eutrophication of major river systems
• B) sexual differentiation abnormalities in aquatic organisms
• C) PCB accumulation in river systems, wetlands, and lakes
• D) temperature fluctuations that cause rivers to cool excessively

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Definitions:

Tibial Nerve

A branch of the sciatic nerve that passes down the lower leg and is responsible for innervating the muscles of the lower leg and foot.

Sciatic Nerve

The largest nerve in the human body, running from the lower back down through each leg, responsible for movement and sensation.

Radial Nerve

A nerve in the arm that supplies movement and sensation to the arm, forearm, and hand.

Coracobrachial

A muscle in the shoulder that assists in flexing and adducting the arm at the shoulder joint.