Biology 2e

2nd Edition

ISBN: 9781947172517

Author: Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher: OpenStax

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Textbook Question

Chapter 18, Problem 9RQ

What is the main difference between dispersal and vicariance?

One leads to allopatric speciation, whereas the other leads to sympatric speciation
One involves the movement of the organism, and the other involves a change in the environment
One depends on a genetic mutation occurring, and the other does not
One involves closely related organisms, and the other involves only individuals of the same species.

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Chapter 18, Problem 8RQ

Chapter 18, Problem 10RQ

Chapter 18 Solutions

Biology 2e

Ch. 18 - Figure 18.14 Which is most likely to survive,...Ch. 18 - Figure 18.22 If two species eat a different diet...Ch. 18 - Figure 18.23 Which of the following statements is...Ch. 18 - Which scientific concept did Charles Darwin and...Ch. 18 - Which of the following situations will lead to...Ch. 18 - Which description is an example of a phenotype? A...Ch. 18 - Which situation is most likely an example of...Ch. 18 - Which situation would most likely lead to...Ch. 18 - What is the main difference between dispersal and...Ch. 18 - Which variable increases the likelihood of...

Ch. 18 - What is the main difference between autopolyploid...Ch. 18 - Which reproductive combination produces hybrids?...Ch. 18 - Which condition is the basis for a species to be...Ch. 18 - Which situation is not an example of a prezygotic...Ch. 18 - Which term is used to describe the continued...Ch. 18 - Which components of speciation would be least...Ch. 18 - If a person scatters a handful of garden pea plant...Ch. 18 - Why do scientists consider vestigial structures...Ch. 18 - How does the scientific meaning of “theory” differ...Ch. 18 - Explain why the statement that a monkey is more...Ch. 18 - Why do island chains provide ideal conditions for...Ch. 18 - Two species of fish had recently undergone...Ch. 18 - Why can polyploidy individuals lead to speciation...Ch. 18 - What do both rate of speciation models have in...Ch. 18 - Describe a situation where hybrid reproduction...

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