A period of time missing from the geologic record is called a(n):

Magma is molten rock exposed on the Earth’s surface.

Jurisdiction is a legal concept relating to the authority of a court to hear and decide a case.

Archaeopteryx was a bird-like creature with reptile characteristics. This showed recent evolutionary traits as well as features from the ancestral group. This evolution mechanism is called:

The name ‘dinosaur’, meaning “fearfully great lizard”, was proposed by Charles Darwin.

District attorneys, state attorneys general, and U.S. attorneys are examples of:

What feature of birds has remained constant across all species over the Cenozoic?

The Cenozoic makes up the largest chunk or proportion of geologic time.

No new crust is formed and no old crust is destroyed at _________ plate boundaries.

One hypothesis to explain modern human origins states that modern humans originated in Africa, and migration into Europe and Asia began approximately 100,000 years ago.