Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 21, Problem 1FFT
Under what circumstances should natural selection favor possession of a holometabolous life cycle over an ametabolous or hemimetabolous life cycle? Consider food availability, specialized body parts, and dispersal ability in your answer.
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In social insects, colonies often consist of a queen and workers. The workers are typicallydaughters of the queen. The queen is the only reproductive individual—the workers aresterile. a) According to Hamiton’s rule, what is the maximum ratio of cost to benefit (C/B) for theworkers in order for this system to evolve?b) Some colonies of ants have multiple queens, which can be related to different degrees.Imagine that two sisters start a colony, so that they are the mother or aunt to allworkers. What is the maximum ratio of cost to benefit (C/B) for the workers to sacrificefor their aunts?
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Please Do not write from an online source
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A
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B
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D
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E
cost of future survival and reproduction
Chapter 21 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 21 - Prob. 1RQCh. 21 - Prob. 2RQCh. 21 - Explain why indirect flight muscles can beat much...Ch. 21 - Prob. 4RQCh. 21 - What major parts form an insects gut, and how do...Ch. 21 - Prob. 6RQCh. 21 - Describe the tracheal system of a typical insect...Ch. 21 - Describe the unique excretory system of insects....Ch. 21 - Prob. 9RQCh. 21 - Prob. 10RQ
Ch. 21 - Describe hormonal control of metamorphosis in...Ch. 21 - What is diapause, and what is its adaptive value?Ch. 21 - Prob. 13RQCh. 21 - Prob. 14RQCh. 21 - Prob. 15RQCh. 21 - Prob. 16RQCh. 21 - Prob. 17RQCh. 21 - Prob. 18RQCh. 21 - What is colony collapse disorder, and why is it of...Ch. 21 - Prob. 20RQCh. 21 - Prob. 21RQCh. 21 - Prob. 22RQCh. 21 - Under what circumstances should natural selection...
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