At the End of the Ordovician,many Shallow-Marine Organisms Went Extinct

question 160

Multiple Choice

At the end of the Ordovician,many shallow-marine organisms went extinct due to

• A)deep water predators.
• B)a long duration of high sea level.
• C)cooling temperatures,increased glaciation,and decreased sea level.
• D)cooling temperatures,increased glaciation,and a rise in sea level.

---

Definitions:

Combining Form

A prefix or suffix added to a word root to change its meaning or create a new word, commonly used in medical terminology.

Xer/o

A prefix in medical terminology denoting dryness.

Hem/o

A prefix used in medical terminology that refers to blood.

Hepat/o

A prefix relating to the liver.