The complex series of orogenies along the western coast of North America is called the:

Organisms with an evolutionary advantage are those that:

A tetrapod is a(n) ____.

What concept describes Earth’s crust as “floating” on denser underlying mantle?​

A case in which one representative party files a lawsuit on behalf of all members of a group of plaintiffs who share a single, similar injury is a(n): 

During the Great _____________ Biodiversification Event, marine life like brachipods and phytoplankton greatly diversified.

What is an epeiric sea?

The oldest known supercontinent in Earth’s history is called: 

Monotremes are a type of mammal that:

Laws created by administrative agencies are known as