The Graph Shows the Extinction Rates for Families of Marine

question 36

Multiple Choice

The graph shows the extinction rates for families of marine organisms over different periods of Earth's history. What is the best estimate for the background extinction rate given these data?

• A) 14-20 families per million years
• B) 8-12 families per million years
• C) 2-5 families per million years
• D) 2-20 families per million years

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Definitions:

Myopia

A common vision condition characterized by difficulty in seeing distant objects clearly, often referred to as nearsightedness.

Color Blindness

A visual deficiency where individuals have difficulty distinguishing between certain colors.

Amblyopia

A condition affecting vision development in which an eye cannot attain usual clarity, frequently called "lazy eye."

Ménière's Disease

A condition affecting the inner ear, resulting in episodes of dizziness (vertigo) and a decline in hearing capability.