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Chapter 16, Problem 13SQ
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Biology: The Unity and Diversity o...

0th Edition
STARR
ISBN: 9780357093795

Solutions

Chapter
Section
FindFindarrow_forward

Biology: The Unity and Diversity o...

0th Edition
STARR
ISBN: 9780357093795

Textbook Problem

On the geologic time scale, life originated in the _____.

  1. a. Archean
  2. b. Proterozoic
  3. c. Phanerozoic
  4. d. Cambrian

Summary Introduction

Introduction: Geological time scale is the total life span on the Earth from its origin. It is also called as the calendar of the Earth, as it explains the relationships and timing of events that have taken place during the Earth's history. It can relate the rock layers with the time interval. The events are mainly classified into eons, eras, periods, and epoch. The eras are mainly divided into 4- Cenozoic, Mesozoic, Paleozoic, and Archean.

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