Evidence for Evolution

The index fossil of a type of trilobite is discovered in layer A of a set of rock layers found at three different sites of a field investigation. Which conclusion can be made about the rocks in layer A at all three sites?

• The rocks are all different ages
• The rocks are all about the same age
• The rocks were formed from melting magma
• The rocks were formed during a catastrophic event

Rich beds of marine fossils have been found in Florida. By dating these fossils, scientists can best determine

• when Florida collided with the North American continent.
• the date when organisms moved onto dry land.
• the period during which Florida was covered in water.
• when the atmosphere of Earth was more humid than it is today.

Which statement best describes the Law of Superposition?

• Each sedimentary layer of rock represents 1,000 years of Earth's age, much like the rings of a tree.
• In undisturbed layers of sedimentary rocks, the upper rock layers are older than the lower rock layers.
• In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks.
• Rocks that form near volcanoes are older than surrounding rock.

On a geologic timeline, where are the oldest dates found?

• at the top of a vertical timeline and the right side of a horizontal timeline

• at the top of a hortizontal timeline and the bottom of a vertical timeline

• at the bottom of a vertical timeline and the left side of a horizontal timeline

What is the oldest layer?

• E

• D

• C

• B

• A

What is the youngest layer?

• E

• D

• C

• B

• A

The diagram supports which hypothesis?

• The fossil in layer C is preserved in igneous rock.
• The fossil in layer C is preserved in metamorphic rock.
• The fossil in layer C is older than the fossil in layer D.
• The fossil organism in layer C is more complex than the fossil organism in layer D.

The bones in the image are color coded.  These colors respond to similar bone structure this could mean

• All animals came to the fossil record at  close to the same time.
• All of this organisms share a common ancestor.
• These organisms were well preserved because they were in an environment with lots of erosion.
• These are all index fossils and can be used to determine relative age.

What might you conclude if a fish fossil was found on top of a mountain in Kentucky?

• An Earthquake happened there.
• A Volcano erupted there.
• A forest covered that area for a while.
• A Sea once covered the area.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

The remains or physical evidence of an organism that has been preserved.

• Cast

• Mold

• Fossil

• Intrusion