Discover Biology (Sixth Core Edition)
Discover Biology (Sixth Core Edition)
6th Edition
ISBN: 9780393936735
Author: Anu Singh-Cundy, Gary Shin
Publisher: W. W. Norton & Company
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Chapter 17, Problem 1SQ
Summary Introduction

Concept introduction: The most basic and ancient branches of the tree of life defines three domains. All the life forms in the environment belong to one of this domain system. The domains are again divided into kingdoms.

Expert Solution & Answer
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Answer to Problem 1SQ

Correct answer: Archaea, Bacteria, and Eukarya are the groupings that list only domains. Therefore, option c. is correct.

Explanation of Solution

Reasons for the correct statement:

The three-domain system organizes all the lifeforms on the Earth into three large categories or domains. The three domain systems are Bacteria, Archaea, and Eukarya.

Option c. is given as “Bacteria, Archaea, and Eukarya”. As Bacteria, Archaea, and Eukaryaare the three domain systems, option c. is correct.

Reasons for the incorrect statements:

Option a. is given as “Eukarya, Bacteria, and Animalia”. Animalia is not one among the three domain systems. Therefore, option a. is incorrect.

Option b. is given as “Plantae, Protists, and Archaea”. Plantae and Protists are not included in the three domain systems. Therefore, option b. is incorrect.

Option d. is given as “Bacteria, Archaea, and Fungi”. Fungi are not one among the three domain systems. Therefore, option d. is incorrect.

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

Conclusion
The three domain systems include Bacteria, Archaea, and Eukarya.

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Archaea; Author: Bozeman Science;https://www.youtube.com/watch?v=W25nI9kpxtU;License: Standard youtube license