BIOLOGY
BIOLOGY
5th Edition
ISBN: 9781264104680
Author: BROOKER
Publisher: MCG
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Chapter 26, Problem 1TY
Summary Introduction

Introduction: Two different environments, namely terrestrial and aquatic, were produced as the Earth cooled. The major landmasses shifted their positions and separated from each other over the course of billions of years.

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Answer to Problem 1TY

Correct answer: The movement of landmasses that has changed their position, shapes and association with other landmasses is called continental drift. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Over the course of billions of years, the major landmasses shifted their positions, changed their shapes and separated from each other. This phenomenon is called continental drift.

Option c. is given as “continental drift”.

The movement of landmasses (change in position, shapes, and association with other landmasses) is called continental drift. Hence, the correct answer is option c.

Reasons for incorrect answer:

Option a. is given as, “glaciation”.

Glaciation is the movement of glaciers across continents. This alter the composition of species on those landmasses. Hence, option a. is incorrect.

Option b. is given as, “Pangaea”.

At the beginning of the Permian period, the continental drift brought together most of the Earth’s total land into a supercontinent known as Pangaea. Hence, option b. is incorrect.

Option d. is given as, “biogeography”.

Biogeography is defined as the study of the geographic distribution of extinct and living species. Hence, option d. is incorrect.

Option e. is given as, “geological scale”.

The geological scale is used by geologists and researchers to map the timing and relationships between events that have occurred during the history of the Earth. Hence, option e. is incorrect.

Hence, the options a., b., d., and e. are incorrect.

Conclusion

Thus, it can be concluded that continental drift is the movement of landmasses that has changed their position, shapes, and association with other landmasses.

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Students have asked these similar questions
The theory of plate tectonics explains how Earth's continents move. According to this theory, which of the following statements is FALSE? A. Earth's crust is composed of relatively thin, light plates that float atop the dense, viscous upper layer of the mantle.  B. Ocean basins can grow along divergent boundaries, where the ocean floor splits and spreads apart.  C. Continental plates have relatively stable shapes because they are heavier than oceanic plates and tend to sink below oceanic plates where the two types meet.   D. Many of Earth's mountains resulted from the collision of two continental plates along a convergent boundary.
Areas of the Earth that contain communities composed of organisms that are the product of convergent evolution are called: a. ecospheres. b. landscapes.  c. biomes. d. biospheres. e. ecosystems.
Which of the following evidence supports the concept of continental drift? Select all that apply.     A. The discovery of large seafloor ridges and trenches formed via plate tectonics   B. Fossils of the same species found in similarly aged complex rock formations across the globe   C. The finding that magnetic poles of major rock formations always align north to south   D. The discovery that magnetic poles of major rock formations do not always align with the Earth’s magnetic poles
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Fossil: The Language & History of Paleontology; Author: Alliterative;https://www.youtube.com/watch?v=x9yNwRBlKtU;License: Standard youtube license