Answers26-27 - C - RUSD Biology in the Living EarthThe Fossil and Rock Records

The Fossil and Rock Records — Quiz Answers

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1
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Classify the fossil examples by dragging them to the correct box.

Answer:

hollow shape of the outside of an organism,insect wing impression|fossilized dung|insect trapped in amber,whole organism or soft tissues intact

2
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Today, Antarctica is cold and covered by an ice sheet year-round. Geologists have found fossils of tropical ferns in the rocks under Antarctica's ice. What do the tropical fern fossils in Antarctica suggest about Earth's past?

A
Fossilization occurred only in tropical regions.
B
Ancient ferns grew in cold, icy conditions.
C
The region had a warm, moist climate in the past.
D
The region was once hot and dry.
3

Geologists use several principles of relative dating to determine the relative ages of geologic structures. These principles help scientists establish the sequence of events in Earth's history without determining exact numerical ages. Match each principle to the information it provides.

Answer:

superposition|original horizontality|index fossils|cross-cutting relationships|unconformity

4

Which layer is younger than igneous intrusion P?

A
S
B
L
C
A
D
C
5

What does the foraminifera fossil record suggest about the effect of the asteroid impact on living things and environmental conditions?

A
The oceans were warmer after the impact because larger and more complex foraminifera thrived.
B
The asteroid impact drastically reduced the diversity of living things on Earth and changed Earth's climate.
C
Smaller and simpler foraminifera were weaker, and only large and complex foraminifera survived the impact.
D
Like dinosaurs, foraminifera became extinct, and new organisms filled their roles in the ocean ecosystem.
7

Today, Antarctica is cold and covered by an ice sheet year-round. Geologists have found fossils of tropical ferns in the rocks under Antarctica's ice. What do the tropical fern fossils in Antarctica suggest about Earth's past?

A
The region was once hot and dry.
B
The region had a warm, moist climate in the past.
C
Ancient ferns grew in cold, icy conditions.
D
Fossilization occurred only in tropical regions.
8

What does the fossil distribution of Mesosaurus suggest?

A
Mesosaurus swam across the Atlantic Ocean.
B
Mesosaurus lived in both saltwater and freshwater environments.
C
South America and Africa were once connected.
D
Fossils can appear randomly on different continents.
9

What does the distribution of Lystrosaurus fossils suggest?

A
South America, India, and Australia were once connected.
B
The species was able to fly long distances.
C
Antarctica, India, and Africa were once connected.
D
Lystrosaurus swam across the oceans.

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The Fossil and Rock Records — Quiz Answers…