STMS 2ndQ Practice Test

Front

What is the Mesozoic Era known for?

Back

The Mesozoic Era is known for the evolution of dinosaurs.

Front

Which modern animals are most likely relatives of ammonites?

Back

Octopi and squids are the modern relatives of ammonites.

Front

According to the law of superposition, which rock layer contains the youngest fossils?

Back

Layer W contains the youngest fossils.

Front

What does a fossil indicate about the region where it was found?

Back

A fossil can indicate that the region was once an aquatic habitat.

Front

What can be concluded if a trilobite fossil is found in the bottom-most layer and an ancient sea lily in an upper layer?

Back

The fossil of the ancient sea lily will more closely resemble modern-day organisms.

Front

What is a trilobite?

Back

A trilobite is an extinct marine organism known for its hard exoskeleton and segmented body.

Front

What does the term 'extinct' mean?

Back

Extinct means that a species no longer exists.

Front

What is the significance of sedimentary rock layers in paleontology?

Back

Sedimentary rock layers help determine the relative ages of fossils found within them.

Front

What type of environment is indicated by the presence of certain fossils?

Back

The presence of aquatic fossils indicates that the environment was once underwater.

Front

What is the law of superposition?

Back

The law of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest are at the top.