Question

1. pangaea is a:

marks : 1.00
a. transition fossil
d. vestigial structure
c. species of bacteria that is resistant to all antibiotics
b. molecule that is commonly analyzed and used to show which organisms are related
e. single supercontinent that existed 200 million years ago

Explanation:

• Option A: Transition fossils show evolutionary transitions, Pangaea is not a fossil.
• Option D: Vestigial structures are leftover body parts, not related to Pangaea.
• Option C: Pangaea is not a bacterium.
• Option B: Molecules for showing related organisms (like DNA/proteins) are not what Pangaea is.
• Option E: Pangaea is the name of the single supercontinent that existed ~200 million years ago before continental drift separated the landmasses.

Answer:

E. Single supercontinent that existed 200 million years ago