M + M LC1 Review

Front

What is a fossil?

Back

The hardened remains of a living thing that died long ago.

Front

What type of rock is useful for studying fossils?

Back

Sedimentary rock.

Front

Why are there more animal fossils than plant fossils?

Back

Plants have softer bodies than animals.

Front

What is an intrusion in geology?

Back

An intrusion is always younger than the rock layers around it and beneath it.

Front

What is an imprint fossil?

Back

A trace fossil.

Front

What are the main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is sedimentary rock?

Back

Rock formed by the accumulation of sediments, often containing fossils.

Front

What is the difference between a cast and a trace fossil?

Back

A cast is a replica of an organism, while a trace fossil shows evidence of activity, like footprints.

Front

What does it mean for a species to be extinct?

Back

A species that no longer has any living members.

Front

What is the significance of the Grand Canyon in geology?

Back

It provides a visible record of Earth's geological history through its rock layers.