Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 25.2, Problem 1CC
Describe an example from the fossil record that shows how life has changed over time.
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What patterns in the fossil record would support that organisms have evolved?
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Chapter 25 Solutions
Campbell Biology
Ch. 25.1 - What hypothesis did Miller test in his classic...Ch. 25.1 - How would the appearance of protocells have...Ch. 25.1 - MAKE CONNECTIONS In changing from an "RNA world"...Ch. 25.2 - Describe an example from the fossil record that...Ch. 25.2 - WHAT IF? Your measurements indicate that a...Ch. 25.3 - The first appearance of free oxygen in the...Ch. 25.3 - What evidence supports the hypothesis that...Ch. 25.3 - WHAT IF? What would a fossil record of life today...Ch. 25.4 - Explain the consequences of plate tectonics for...Ch. 25.4 - What factors promote adaptive radiations?
Ch. 25.4 - Prob. 3CCCh. 25.5 - Explain how new body forms can originate by...Ch. 25.5 - Why is it likely that Hox genes have played a...Ch. 25.5 - Prob. 3CCCh. 25.6 - How can the Darwinian concept of descent with...Ch. 25.6 - Prob. 2CCCh. 25 - Describe the roles that montmorillonite clay and...Ch. 25 - What are the challenges of estimating the ages of...Ch. 25 - What is the "Cambrian explosion," and why is it...Ch. 25 - Explain how the broad evolutionary changes seen in...Ch. 25 - How could changes in a Single gene or DNA region...Ch. 25 - Explain the reasoning behind the Statement...Ch. 25 - Level 1: Knowledge/Comprehension 1. Fossilized...Ch. 25 - The oxygen revolution changed Earth's environment...Ch. 25 - Prob. 3TYUCh. 25 - Prob. 4TYUCh. 25 - Prob. 5TYUCh. 25 - Prob. 6TYUCh. 25 - Prob. 7TYUCh. 25 - EVOLUTION CONNECTION Describe how gene flow,...Ch. 25 - Prob. 9TYUCh. 25 - WRITE ABOUT A THEME: ORGANIZATION You have seen...Ch. 25 - Prob. 11TYU
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- There was a large proliferation of fossils showing increase in diversity of life.What period is this?arrow_forwardWhich mechanism of fossil formation created a replica of an organism's original form? a natural cast b amber-preserved c permineralization d trace fossilarrow_forwardWhich of the following was not present by the end of Precambrian? a. archaea c. fungi b. bacteria d. fisharrow_forward
- The wing of a bird and the arm of a human are examples of ______. a. vestigial structures b. molecular structures c. homologous structures d. analogous structuresarrow_forwardWhat is a phylogeny a description of? a. mutations b. DNA c. evolutionary history d. organisms on Eartharrow_forwardChoose the 2 groups of organisms that would most well preserved in the fossil record? 00000 Slime mold Algae Bacteria Archaea parts of a tree A marine protist with a hard shell or skeletonarrow_forward
- What is the correct order of appearance in the fossil record, starting with the earliest: eukaryotic cells, multicellular organisms, prokaryotic cells?arrow_forwardMatch the description with the type of evidence of evolution they belong to. 1. Homologous structures Study of Fossils 2. Universality of DNA as genetic material Anatomy and Embryology 3. Geographic distribution of Molecular Biology organisms on the planet Biogeography 4. Records tells the story of the past and shows the evolution of form over millions of years 000arrow_forwardDescribe the time line of appearances of different types of organisms on earth.arrow_forward
- What is a phylogeny a description of?a. mutationsb. DNAc. evolutionary historyd. organisms on Eartharrow_forwardIn which type of rock are you most likely to find a fossil? a. basalt, a dark, fine-grained volcanic rock b. limestone, composed of sedimented calcium carbonate c. slate, a volcanically melted and cooled shale d. granite, which forms by crystallization of magma cooling below Earth’s surfacearrow_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_forward
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