Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 25, Problem 11TYU
Summary Introduction
To write: The volcanic eruptions of the Permian period and Pangaea formation.
Introduction: There are five mass extinctions that are documented so far in the fossil record over a period of 500 million years ago. The fossil record of mass extinction is mainly from the hard-bodied animals in shallow seas. During this event, about 50% of marine species have become extinct.
The Permian and Cretaceous mass extinction received an important attention, since the mass extinction happened between the Palaeozoic and Mesozoic periods. During this event, about 96% of marine animal species drastically altered their life in the ocean.
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29) The Cretaceous extinction. which was the most
recent mass extinction, occurred about 65.5 million
years ago. What is the
leading hypothesis to explain the Cretaceous
extenction?
A) The Indian sub-continent collided with the Asian
techtonic plate, giving rise to the Hymalayan
mountains which altered the
jet stream and caused the planet to enter an ice age
B) An asteroid about 6 km in diameter collided with
Earth, which vaporized the caribbean ocean, set fire
to north and south
America, and expelled enough dust into the
atmosphere to block the sun enough to result in a
winter like environment all
across the globe for several years
C) A new group of predators evolved that were
significantly better at capturing prey, to the point that
they drove many species
(including other predators and eventually
themselves) to extinction
D) Massive amounts of volcanic activity released
tons of CO2, enough to significantly increase the
temperature of the planet
30) The Permian extinction, which…
Below are some key events that took place during the long history of life on Earth. Arrange them in the correct sequence:
First land plants (kingdom Plantae)
First eukaryotic life (domain Eukarya)
Adaptive radiation of mammals (class Mammalia)
Evolution of chloroplasts
Cambrian explosion
First aerobic organisms (those that utilize cellular respiration)
First land vertebrates (tetrapods)
First multicellular organisms
First living cells
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(Summarize it in a bullet form and send the answer here based on the given questions)
Here are the following questions:
1. Discuss the major events in the history of life on earth, starting from the origin of life up to the present day, highlighting key evolutionary developments and transitions.
2. What is the role of mass extinctions in shaping the history of life on Earth? How do these events influenced biodiversity and evolutionary trajectories?
Chapter 25 Solutions
Campbell Biology (10th Edition)
Ch. 25.1 - What hypothesis did Miller test in his classic...Ch. 25.1 - How would the appearance of protocells have...Ch. 25.1 - Prob. 3CCCh. 25.2 - WHAT IF? Your measurements indicate that a...Ch. 25.2 - Describe an example from the fossil record that...Ch. 25.2 - Prob. 3CCCh. 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 - Prob. 1TYUCh. 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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