ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
3rd Edition
ISBN: 9780135964422
Author: Urry
Publisher: PEARSON
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Chapter 39, Problem 7TYU
Summary Introduction
Introduction:
Natural selection is the process by which the organisms that are better adapted to the environment tend to survive and reproduce better than those that are less adapted.
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Students have asked these similar questions
Which of the following is the best description of sexual selection?
a.
Sexual selection is the differential reproductive success due to variation in acquiring immunity from mates.
b.
Sexual selection is the differential reproductive success due to variation in survival from social selection.
c.
Sexual selection is the differential reproductive success due to variation in acquiring mates or mating success.
d.
Sexual selection is the differential survival success due to variation in avoiding mates or mating success.
This hypothesis suggests that a resulting association of female preference and male display trait can lead to a positive feedback cycle of ever stronger preference and greater display trait.
A. Fisher-Zahavi process.
B. Fisher's runaway model.
C.Good genes process.
D.Bateman's principle.
Descent with modification results in individuals who:
A.
are the strongest.
B.
are the smartest.
C.
have the greatest ability to succeed in life.
D.
have the greatest ability to survive and reproduce.
Chapter 39 Solutions
ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
Ch. 39.1 - Contrast the role of Ca2+ in the contraction of a...Ch. 39.1 - WHAT IF? Why are the muscles of an animal that has...Ch. 39.1 - Prob. 3CCCh. 39.2 - Prob. 1CCCh. 39.2 - Prob. 2CCCh. 39.2 - Prob. 3CCCh. 39.3 - Prob. 1CCCh. 39.3 - MAKE CONNECTIONS How is the lunar-linked rhythm of...Ch. 39.4 - How might associative learning explain why...Ch. 39.4 - Prob. 2CC
Ch. 39.4 - MAKE CONNECTIONS How might a learned behavior...Ch. 39.5 - Prob. 1CCCh. 39.5 - MAKE CONNECTIONS Balancing selection can maintain...Ch. 39.6 - Prob. 1CCCh. 39.6 - Prob. 2CCCh. 39 - During the contraction of a vertebrate skeletal...Ch. 39 - Prob. 2TYUCh. 39 - According to Hamiltons rule, A. natural selection...Ch. 39 - The binding of calcium to the troponin complex A....Ch. 39 - Curare, a substance that blocks the acetylcholine...Ch. 39 - Prob. 6TYUCh. 39 - Prob. 7TYUCh. 39 - SCIENTIFIC INQUIRY Propose a hypothesis to explain...Ch. 39 - Prob. 9TYUCh. 39 - Prob. 10TYUCh. 39 - FOCUS ON INFORMATION Learning is defined as a...Ch. 39 - Prob. 12TYU
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- A. Explain what imprinting is (use an example if that would help, but you can't use Geese and Konrad Lorenze or any other bird). B. How does imprinting combine both instinct and learning? C. How might imprinting be affecting the selection of mates in humans and (D) the evolution of racial differences in humans?arrow_forwardWhich of the following is true of innate behaviors that are described as instincts? A. Instincts aren’t governed by genetics, while innate behaviors are, B. Instincts are governed by genetics, while innate behaviors are not, C. Instincts are sudden, situational behaviors, D. Instincts are complex series of innate behaviorsarrow_forwardWhich of the following statements concerning the evolution of behavior is correct? A. Natural selection will favor behavior that enhances survival and reproductive success. B. An animal may show a behavior that maximizes reproductive fitness. C. If a behavior it is less than optimal, it is not yet completely evolved but will eventually become optimal D. A and B only E. A, B and Carrow_forward
- Behavioral ecology assumes a. that all behavioral traits are innate. b. learning is the dominant determinant of behavior. c. behavioral traits are subject to natural selection. d. behavioral traits do not affect fitness.arrow_forwardWhich of the following statements about dominant traits is correct? a. The dominant trait is the one that is expressed. b. They are observed three-fourths as frequently as heterozygous traits. c. They are observed less frequently than recessive traits. d. They increase in frequency over evolutionary time. e. The dominant trait is typically masked by the recessive trait.arrow_forwardA social interaction between an actor and a recipient can influence their relative fitness. When the outcome of such an interaction brings harm to both participants, the action is described as being _________. A. asymbiotic. B. spiteful. C. antagonistic. D. selfish.arrow_forward
- You are studying a genetically modified mouse that produces electric blue fur, which is not a fur color observed in nature. You notice that females prefer males that have the blue fur when given a choice test for mates. This result supports which of the following models of sexual selection? a. Sexual selection for indirect benefits b. Sexual selection for direct benefits c. Sexual selection for arbitrary traits d. None of the abovearrow_forwardIn Biology of Beauty, Cowley found that contemporaryfemales are attracted to males with broad foreheads and strong chins, and that this effect persisted across different cultures. How did Cowley explain this result? A. This is a trick question- this attraction is culturally relative B. Males compete for access to females by developing these features as a form of male-male competition C. There is no evidence that females really are differentially attracted to males with these features D. Attraction to males with these features is adaptive for females because males with these traits are usually sexually mature and have healthy immune systems E. Only some human cultures value these traits as attractive.arrow_forwardIdentify each of the following statements as being most similar to a hypothesis, a law or a theory. Explain your reasoning. A. Dogs like to chase bunnies. B. By identifying the gene responsible for triggering the predation response, breeders could develop a dog that will not chase bunnies. C. The predatory behavior of dogs towards smaller animals is due to their close genetic relationship to wolves.arrow_forward
- Clarify the difference between claiming that, a) some behaviours are genetically determined, versus b) some differences among individuals in behavioural phenotype are genetically determined. Are both claims valid in some circumstances? Use any suitable example you know about to justify your answer.arrow_forwardA scientist is curious about the effects of diet on the gut length of spadefoot toad tadpoles. She collects tadpoles from pools and dissects them to determine the length of their gut and their diet. This study is…. Group of answer choices A. observational because she is not manipulating an independent variable B. possibly the most boring thing I have ever read C. experimental because she is doing it in the lab D. observational because she is doing it outside E. experimental because she is controlling the independent variablearrow_forwardWhich of the following does not apply to mutations?a. They occur to cause adaptive changes in response to the environment.b. They are usually either harmful or neutral.c. They are only inherited if they occur in a sperm or egg cell.d. They often occur when DNA is copied.arrow_forward
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