The Continuous, Low-Level Extinction of Species That Has Occurred Throughout

question 37

Multiple Choice

The continuous, low-level extinction of species that has occurred throughout the history of life on Earth is known as:

• A) mass extinction.
• B) evolution.
• C) background extinction.
• D) human impact extinction.
• E) biotic pollution.

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Definitions:

Diaphoresis

Excessive sweating, often as a symptom of an underlying health condition or physical exertion.

Flushed

Sudden reddish coloration of the skin.

Frostbite

A condition where localized damage is caused to skin and other tissues due to extreme cold.

Heatstroke

A severe condition caused by impairment of the body’s temperature-regulating abilities, resulting from prolonged exposure to excessive heat and characterized by cessation of sweating, severe headache, high fever, hot dry skin, and in serious cases collapse and coma.