Multiple Choice
Which of the following lists correctly names the three domains in the modern classification system?
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1. Introduction to Biology
Introduction to Taxonomy
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Reptiles first appeared during the _____ era.
A
Paleozoic
B
Precambrian
C
Cenozoic
D
Mesozoic
Verified step by step guidance1
Understand the timeline of Earth's history, which is divided into major eras: Precambrian, Paleozoic, Mesozoic, and Cenozoic.
Recall that the Precambrian era is the earliest and primarily associated with the formation of Earth and the emergence of simple life forms like bacteria and algae.
Recognize that the Paleozoic era is known for the diversification of life, including the appearance of fish, amphibians, and early reptiles.
Note that the Mesozoic era is often referred to as the 'Age of Reptiles,' but reptiles first appeared earlier during the Paleozoic era.
Eliminate the Cenozoic era, which is the most recent and known as the 'Age of Mammals,' as it is not relevant to the appearance of reptiles.
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