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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.
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.
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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Chapter 26 Solutions
BROOKER BIOLOGY
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Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning