Exam 12: Evidence of Evolution

How do exposed layers of sedimentary rock in the Grand Canyon reveal clues about the geologic time scale?

The supercontinent that once contained all of Earth's landmasses is known as _____. Caprica

An unusual, worldwide formation of sedimentary rock called the K-Pg boundary sequence contains rare elements that are associated with a(n) ____.

Of the following, which is the oldest event?

Zircon crystals that form in molten magma are easily dated because they initially contain ____.

Which observation led Darwin to propose that the glyptodont is related to the armadillo?

To determine the dietary habits of dinosaurs, their _____ can be analyzed for the presence of undigested plant material or bones.

The super continent _____ included the landmasses that are currently found in the southern hemisphere.

After studying the wildlife in the Amazon basin, ____ proposed the theory of natural selection.

The method that indicates the age of a substance by measuring the relative content of a radioisotope and its daughter elements is called ____ dating.

How are fossils older than 60,000 years dated?

Which factor influences radioactive decay?

Biogeography is the study of the ____.

Similar structures that have evolved independently in different lineages that do not share common ancestry are called ____.

Hind leg bones in whales are an example of ____ structures.

Darwin was inspired by ____ ideas on the geologic history of Earth, which allowed him to better understand the geology of the regions he would visit on his journey aboard the Beagle .

Fossilization most often occurs through the geologic process(es) of ____.

Missing links in the fossil record prevent scientists from determining evolutionary lineages until _____ are discovered.

Which event occurred first?

What is the correct order of landmass formation starting with the oldest and moving toward the most recent?