Bundle: Human Biology, Loose-leaf Version, 11th + MindTap Biology, 1 term (6 months) Printed Access Card
11th Edition
ISBN: 9781305616660
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 23, Problem 6RQ
Summary Introduction
To describe: The chemical and physical environment in which the first living cells may have evolved.
Introduction: Our Earth was formed before 4.6 billion years from the sun with continuous bombardment of huge rocks and ices. When Earth was formed, chemical evolution began which formed organic molecules. Organic molecules led to evolution of first cells and thus, life evolved.
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Chapter 23 Solutions
Bundle: Human Biology, Loose-leaf Version, 11th + MindTap Biology, 1 term (6 months) Printed Access Card
Ch. 23 - Prob. 1RQCh. 23 - As shown in Figure 23.25, there is considerable...Ch. 23 - Prob. 3RQCh. 23 - Prob. 4RQCh. 23 - Prob. 5RQCh. 23 - Prob. 6RQCh. 23 - Prob. 1SQCh. 23 - The relative numbers of different genes (alleles)...Ch. 23 - A difference in survival and reproduction among...Ch. 23 - The fossil record of evolution correlates with...
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- explain the evolution of life. Comparison and description of the early organism and relate their characteristics with their environment.arrow_forwardExplain how the diversity of life evolved over time.arrow_forwardGive two reasons why the evolution of multicellularity was important. Edit View הזחןarrow_forward
- The formation of the first living organism is still a mystery. Outline and explain the steps in the origin of life. Explain where the original organisms must have lived and why?arrow_forwardWhich of these steps probably occurred first in the chemical andbiological evolution of life?a. The cell membrane of a protobiont formed.b. The first organic molecules formed.c. The original genetic material was RNA.d. Simple organic monomers formed from inorganic materials.arrow_forwardList the proposed steps that led to the first cellular lifearrow_forward
- What is the correct order of appearance in the fossil record, starting with the earliest: eukaryotic cells, multicellular organisms, prokaryotic cells?arrow_forwardThe development of the cell theory was most directly related to the ? 1. improvement of the microscope and microscopic techniques 2. use of a five kingdom classification system 3. development of the gene-chromosome theory 4. discovery of bacteria and virusesarrow_forwardExplain how the origin of eukaryotic cells involved a unionbetween bacterial and archaeal cells.arrow_forward
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