Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 44, Problem 1CT
Think back to Section 44.6. When researchers moved guppies from populations preyed on by cichlids to a habitat with killifish, the life histories of the transplanted guppies evolved. They came to resemble those of guppy populations preyed on by killifish. Males became gaudier; some scales formed larger, more colorful spots. How might a decrease in predation pressure on sexually mature fish allow this change?
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3.
1. The stickleback would swim from the ocean up to fresh water lakes to spawn (lay eggs).
When the land rose and cut off the river passage back to the ocean, what challenge did the
stickleback face?
2. Ten-thousand years later, how have the stickleback in the freshwater lakes changed or
evolved?
3. The ocean has many predatory fish that could catch and eat the stickleback, what are at least
two characteristics that ocean stickleback evolved?
4. Why are stickleback spines a liability (an unfortunate characteristic) in Bear Paw Lake?
5. What FOUR letters make up the stickleback DNA?
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Chapter 44 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 44 - Most commonly, individuals of a population show a...Ch. 44 - Prob. 2SQCh. 44 - Suppose 200 fish are marked and released in a...Ch. 44 - Prob. 1DAACh. 44 - Prob. 2DAACh. 44 - Iguana Decline In 1987, Martin Wikelski began a...Ch. 44 - Prob. 4SQCh. 44 - For a given species, the maximum rate of increase...Ch. 44 - Prob. 6SQCh. 44 - A life history pattern is a set of adaptations...
Ch. 44 - The human population is now about 7 billion. It...Ch. 44 - Prob. 9SQCh. 44 - Prob. 10SQCh. 44 - Prob. 11SQCh. 44 - Prob. 12SQCh. 44 - Match each term with its most suitable...Ch. 44 - Think back to Section 44.6. When researchers moved...Ch. 44 - The age structure diagrams for two hypothetical...
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