EBK CAMPBELL BIOLOGY
11th Edition
ISBN: 8220103613828
Author: Reece
Publisher: PEARSON
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Chapter 25, Problem 25.5CR
How could changes in a Single gene or DNA region ultimately lead to the origin of a new group of organisms?
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What is a Homology?
A) When an anatomic feature is shared among organisms and their descendants
B) When two organisms appear the same
C) When convergent evolution produces similar phenotypes
What causes for a species to evolve?
What is the most logical theory on the topic of the Origin of Life?
Chapter 25 Solutions
EBK 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 - MAKE CONNECTIONS Given that changes in morphology...Ch. 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 - Which of the following steps has not yet been...Ch. 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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- What is an Analogy? A) When an anatomic feature is shared among organisms and their descendants B) When two organisms appear the same C) When convergent evolution produces similar phenotypesarrow_forwardWhy was the age of Earth important for Darwin’s ideas about evolution?arrow_forwardIf a species is immutable (mutations do not occur) is evolution possible? Explainarrow_forward
- A) single-cell organisms, Cyanobacteria B) mammal formed, fish, reptiles C) Cyanobacteria, single cell organisms D) multi-cellular, fish, amphibiansarrow_forwardScientists Stanley Miller and Harold Urey set up an experiment modeling the environmental conditions thought to exist during the early stages of Earth's formation. The setup of Miller and Urey's experiment is shown below. Which conclusion about the origin of life could be drawn from the potential results of this experiment? Life assembled from chemical building blocks. Life began when water vapor became electrified. Life evolved from the DNA of simple unicellular organisms. Life began when salt water caused a mutation in an ancient virus.arrow_forwardWhy is our gene annotation important? a) Gene annotation done by real people is more accurate than if done by computer algorithm. b) Gene annotation creates a 'map' of the parts of a gene. c) Gene annotation allows us to compare gene structure between species to learn about how genes evolved. d) All of the abovearrow_forward
- What are the weaknesses of the origin of life theories?arrow_forwardHow does evolution work to create the diversity of life on Earth?arrow_forwardIf you found the same gene in all organisms you test, what could this suggest about the evolution of this gene in the history of life on earth? What if a gene is very similar in most species that you study, but quite different in a particular group? What if it’s present in nearly everything, but the specific sequences vary quite a bit?arrow_forward
- Historically, how has the origin of life on earth been explained?arrow_forwardHow does natural selection lead to the evolution of new species?arrow_forwardThe 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_forward
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Mechanisms of Genetic Change or Evolution; Author: Scientist Cindy;https://www.youtube.com/watch?v=5FE8WvGzS4Q;License: Standard Youtube License