Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 6TYK
Could both the food competition hypothesis and the sexual competition hypothesis explain why giraffes have long necks? Why or why not?
a. No. In science, only one hypothesis can be correct.
b. No. Observations have shown that the food competition hypothesis cannot be correct.
c. Yes. Long necks could be advantageous for more than one reason.
d. Yes. All giraffes have been shown to feed at the highest possible height and fight for mates.
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Students have asked these similar questions
Which of the following statements is a reason why females are usually the "choosier" sex?
A. They expend fewer resources in caring for their offspring.
B. They have higher potential fitness than males.
C. They have fewer opportunities to contribute offspring than males.
D. They directly compete with each other for mates.
A new species is discovered in which males care for offspring after birth, and females leave the nest immediately. In this species, males are likely to
a.
be promiscuous.
b.
have lower parental investment.
c.
have fewer offspring overall than females.
d.
have more offspring overall than females.
A new species is discovered in which males care for offspring after birth, and females leaves the nest immediately. In this species, males are likely to
A. Have more offsprings overall than females.
B. Have fewer offspring overall than females.
C. Be promiscuous.
D. Have lower parental investment.
Chapter 1 Solutions
Biological Science
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6. Could both the food competition hypothesis and...Ch. 1 - What does it mean to say that experimental...Ch. 1 - The term evolution means that _____ change through...Ch. 1 - In biology, to what does the term fitness refer?Ch. 1 - Prob. 7TYUCh. 1 - What did Linnaeus' system of naming organisms...Ch. 1 - Prob. 9TYUCh. 1 - Explain how selection occurs during natural...
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