Author: Anonymous

The extinction event at the end of the Permian affected only marine-dwelling organisms.

A sedimentary layer in which grain size decreases from the bottom up is ____.

Australia is the only modern continent without any glaciers.

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 principle of fossil succession is based on the fact that fossils ____.

Radioactive decay that occurs when two protons and two neutrons are emitted from the parent nucleus:

New World Monkeys belong to the primary order of Prosimians.

The fossil record contained in Cenozoic rocks is more complete because ____.

What theory proposes that the same processes seen today have operated throughout geologic time (i.e. the present is the key to the past)?

Harry Hess originally proposed the idea of continental drift.