Onset of the Carboniferous-Permian Ice Age Initiated a Sudden

question 13

Multiple Choice

Onset of the Carboniferous-Permian ice age initiated a sudden

• A) drop in origination of new genera and an upward spike in extinctions of genera.
• B) drop in both origination and extinction of genera.
• C) rise in origination of new genera and a downward spike in extinctions of genera.
• D) rise in both origination and extinction of genera.

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