Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Textbook Question
Chapter 18.4, Problem 2C
How can we explain that fossils of Mesosaurus an extinct reptile that could not swim across open water, are found in the southern parts of both Africa and South America?
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Chapter 18 Solutions
Biology (MindTap Course List)
Ch. 18.1 - Prob. 1LOCh. 18.1 - Prob. 1CCh. 18.1 - Prob. 2CCh. 18.2 - Prob. 2LOCh. 18.2 - Prob. 1CCh. 18.2 - Prob. 2CCh. 18.3 - Explain the four premises of evolution by natural...Ch. 18.3 - Compare the modern synthesis with Darwins original...Ch. 18.3 - Prob. 1CCh. 18.3 - Why are only inherited variations important in the...
Ch. 18.3 - What was missing in Darwins explanation of...Ch. 18.4 - Summarize the evidence for evolution obtained from...Ch. 18.4 - Define biogeography and describe how the...Ch. 18.4 - Describe the evidence for evolution derived from...Ch. 18.4 - Briefly explain how molecular biology and...Ch. 18.4 - Prob. 9LOCh. 18.4 - Prob. 1CCh. 18.4 - How can we explain that fossils of Mesosaurus an...Ch. 18.4 - How do homologous and homoplastic features provide...Ch. 18.4 - How does developmental biology provide evidence of...Ch. 18.4 - How do predator preferences drive the evolution of...Ch. 18 - Evolution is based on which of the following...Ch. 18 - Evolution is the accumulation of genetic changes...Ch. 18 - Charles Darwin proposed that evolution could be...Ch. 18 - Which of the following is not part of Darwins...Ch. 18 - The evolution of beak size in the various species...Ch. 18 - The fossil record (a) usually occurs in...Ch. 18 - In _______________ the selecting agent is the...Ch. 18 - Aardvarks, anteaters, and pangolins are only...Ch. 18 - Prob. 9TYUCh. 18 - CONNECT In what way does the modern synthesis...Ch. 18 - CONNECT What types of gene changes are most...Ch. 18 - EVOLUTION LINK The use of model organisms such as...Ch. 18 - EVOLUTION LINK Charles Darwin once said, It is not...Ch. 18 - EVOLUTION LINK Write short paragraphs explaining...Ch. 18 - EVOLUTION LINK Although most salamanders have four...Ch. 18 - INTERPRET DATA Which of the primates in Figure...Ch. 18 - Prob. 17TYU
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What do fossil tetrapods tell us about the transition from water to land?
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According to a study by Daniel et al. (1997), nautiloid and ammonoid shells with simple suture patterns could withstand great pressure but have poor buoyancy control whereas the opposite is true for those with complex suture patterns.Given the trend of increasing suture complexity over time in the shells of ammonoids (see figure on the right), how did their habitat
change over time?
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What are the key evolutionary adaptations that diving mammals use to survive at significant ocean depths?
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Amphioxus long has been of interest to zoologists searching for a vertebrate ancestor. Explain why amphioxus captured such interest and how it is different from the hypothesized most recent common ancestor of all vertebrates.
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Which of the following periods is the earliest during which animals may have appeared? a. Ordovician period b. Cambrian period c. Ediacaran period d. Cryogenian period
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Which of the following is the most likely organism to fossilize and be found in the fossil record?
The earliest forms of bacteria
A jellyfish with a soft body
An octopus with a soft body
A crustacean with a hard exoskeleton
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Archaeopteryx is a significant fossil find because it gave hints to the evolution of the following organisms:
a) Lobe-finned fish
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c) Reptiles
d) Birds
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Fossils show that dinosaurs originated between 200 and 250 million years ago. Would you expect the geographic distribution of early dinosaur fossils to be on multiple continents or on a single continent? Explain.
Hint: refer to continental drift in your explanation.
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Which of the following statements regarding the diversification of animals is supported by the current available evidence?
a) most animals belong to the clade Bilateria
b) sponges are a paraphyletic group of organisms
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d) animals descended from multiple ancestors
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Why do you think baleen whales are generally larger than toothed whales? Why are they capable of growing larger than even the largest dinosaurs?
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Which of the following taxa of fish shared most direct common ancestry with the group of animals that evolved into the terrestrial tetrapods?
-Subclass Elasmobranchii
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-Subclass Sarcopterygii
-Class Actinopterygii
-Class Chondrichthyes
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