Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 1, Problem 16PIAT
By avoiding being eaten, B. trifoliolata individuals would have increased fitness. In biology, what does the term “fitness” mean?
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Which of the following could explain the seasonal difference in the diet of squirrels?
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The difference in the nutritional composition of blackberries and acorns.
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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?
According to the video, what was the effect of artificially-modified ant density in acacias on the elephant feeding behavior? (Choose one.)
a. As the number of ants swarming increased per minute on acacia branches, so did the number of branches fed on by elephants.
b. As the number of ants swarming increased per minute on acacia branches, the number of branches fed on by elephants decreased.
c. As the density of ants per A. depranolobium increased, the number of trees fed on by elephants decreased.
d. Elephants fed more frequently on Acacia depranolobium trees with their ants removed than on A. depranolobium trees with ants.
video link:
https://www.youtube.com/watch?v=s3blzcbll7Q&t=293s
Chapter 1 Solutions
Biological Science (7th Edition)
Ch. 1 - Anton van Leeuwenhoek made an important...Ch. 1 - What does it mean to say that a characteristic is...Ch. 1 - 4. Could both the food competition hypothesis and...Ch. 1 - Prob. 5TYUCh. 1 - What did Linnaeus' system of naming organisms...Ch. 1 - 7. What is “selected” during natural selection?...Ch. 1 - 8. PROCESS OF SCIENCE Explain why researchers...Ch. 1 - Prob. 10TYPSSCh. 1 - Prob. 11PIATCh. 1 - Prob. 12PIAT
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