PRINCIPLES OF BIOLOGY ACCESS CARD >I<
PRINCIPLES OF BIOLOGY ACCESS CARD >I<
2nd Edition
ISBN: 9781260663181
Author: BROOKER
Publisher: INTER MCG
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Chapter 22, Problem 1TY
Summary Introduction

Introduction:

From the time the earth has formed until today several geographical changes took place. One such change is the movement of landmasses, changing their positions, shapes and associating with other landmasses. Shifting of landmasses is one of the reasons for the dramatic changes that have occurred on the earth’s surface. This phenomenon had a great impact on the distribution of the organisms across the continents and on the evolution, since 4 or 3.5 billion years ago.

Expert Solution & Answer
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Answer to Problem 1TY

The correct answer is option (c) continental drift.

Explanation of Solution

Explanation/justification for the correct answer:

Option (c) continental drift. As the earth cooled, landmasses formed that was surrounded by bodies of water. This produces two different environments: terrestrial and aquatic. Furthermore, over the course of billions of years, earth’s major landmasses, known as continents, have shifted their positions, changed their shapes, and separated from each other. This phenomenon is called as continental drift. So, the correct answer is option (c).

Explanation for incorrect answer:

Option (a) glaciation. Glaciation is the process or state of being covered by glaciers or ice sheets. So, this is an incorrect option.

Option (b) Pangaea. Pangaea is a hypothetical supercontinent that included all current land masses, believed to have been in existence before the continents broke apart during the Triassic and Jurassic Periods. So, this is an incorrect answer.

Option (d) biogeography.Biogeography is the branch of biology that deals with the geographical distribution of plants and animals. So, this is an incorrect answer.

Option (e) geological scale.The geologic time scale (GTS) is a system of chronological dating that relates geological layers of rock to time. It is used by Earth scientists to describe the timing and relationships of events that have occurred during Earth's history. So, this is an incorrect answer.

Conclusion

Continental drift is the process of the gradual movement of the continents across the earth's surface through geological time. Hence, the correct answer is option (c) continental drift.

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Students have asked these similar questions
The movement of landmasses that have changed their positions, shapes, and association with other landmasses is called glaciation. Pangaea. continental drift. biogeography. geological scale.
Which of the following evidence supports the concept of continental drift? Select all that apply.     The discovery of large seafloor ridges and trenches formed via plate tectonics   Fossils of the same species found in similarly aged complex rock formations across the globe   The finding that magnetic poles of major rock formations always align north to south   The discovery that magnetic poles of major rock formations do not always align with the Earth’s magnetic poles
True or false. The supercontinent pangaea formed about four billion years ago.
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