Unit 3 Test - Pangea, Fossil Record and Common Ancestry

2. Based on the information given and what you know, when attempting to determine whether the collision between India and Eurasia led to the formation of the Himalayan mountains, which question would provide the most valuable evidence?

• How did the ocean currents change after the collision of India and Eurasia?
• Did the formation of the Himalayan mountains change the climate patterns of the region?
• Can fossils of ocean organisms be found in the rocks at high elevations in the Himalayan mountains?

3. Based on the passage and information below, which graph best represents the time period in which dinosaurs existed and their diversification during their time on Earth?

• 
• 
• 

4. The scientist discovered the fossil of another extinct fish. Its body was covered in plates, and it had well-developed vertebrae. The fossil of the fish had no distinct jaw, but it had seven-gill openings. Based on the pattern shown, when did this fish most likely live? Remember you cannot select answers you have NO evidence for.

• 139 million years ago
• 489 million years ago
• 549 million years ago

7. Layer ____ and Layer ____ are the same age.

• Layer B
• Layer D
• Layer J
• Layer L

8. Each of these two layers are the SAME because they both contain the same type of ________.

• fossils
• rocks

9. These two layers contain the SAME TYPE of what I chose above because they FORMED during _________ time periods.

• similar
• different

10. Based on this image given, which list correctly arranges the given rock layers from the oldest layer to the youngest layer?

• Layer G (oldest) → Layer D → Layer E → Layer B (youngest)
• Layer B (oldest) → Layer E → Layer D → Layer G (youngest)
• Layer G (oldest) → Layer E → Layer D → Layer B (youngest)

11. The scientist studied the structure of fins or limbs in the three extinct organisms shown in Figure 2. What similarities do the fins and limbs of these organisms share that can be used to understand the evolution of vertebrates? Choose TWO correct answers.

• Bones make up most of each of the fins and limbs.
• The sizes of the four bones are the same in both fins and limbs.
• The same four types of bones are present in both fins and limbs.
• The arrangement of bones follows a similar pattern in each organism.

12. Compare the human arm to the organism′s forearm structures below. Determine the organisms that may share the closest common ancestor.

• Bird
• Bat
• Box Turtle

13. The table shows data about three types of mammals. Based on the information in the table, which conclusion about the relatedness of these organisms is the most reasonable?

• The organisms lack any shared genetic material.
• The organisms share a common ancestor.
• The organisms all belong to the domain Archaea.