BIOLOGY: CONCEPTS & INVESTIGATIONS LL>C
4th Edition
ISBN: 9781264013548
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 36, Problem 7WIO
Summary Introduction
To determine:
The types of behaviors that are favored by natural selection in cuckoo and cowbirds and in the adoptive parents.
Concept introduction:
The process by which an organism that is better adopted according to the environment is liable and tend to live and can produce their offspring’s. This is the statement of natural selection theory. This theory was given by Charles Darwin. In the present days it is considered to be the main reason for the evolution.
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Why might natural selection act more strongly on traits that improve reproductive success early in life rather than later in life?
European cuckoos and American cowbirds are “brood parasites” that laytheir eggs in the nests of other birds. The chicks are generally raised by“adoptive parents” whose own chicks receive less food and often arekilled by the larger intruders. What kinds of behaviors does naturalselection favor in the cuckoo and cowbird chicks? In the adoptive parents?
What effect does the level at which natural selection operates (genes, individuals, or groups) have on human free will?
Chapter 36 Solutions
BIOLOGY: CONCEPTS & INVESTIGATIONS LL>C
Ch. 36.1 - What is ethology?Ch. 36.1 - Prob. 2MCCh. 36.2 - Prob. 1MCCh. 36.2 - Prob. 2MCCh. 36.2 - Prob. 3MCCh. 36.2 - Prob. 4MCCh. 36.2 - Prob. 5MCCh. 36.3 - Prob. 1MCCh. 36.3 - Prob. 2MCCh. 36.3 - Prob. 3MC
Ch. 36.4 - Prob. 1MCCh. 36.4 - Prob. 2MCCh. 36.4 - Prob. 3MCCh. 36.4 - Prob. 4MCCh. 36.4 - Prob. 5MCCh. 36.5 - What are some benefits and costs of group living?Ch. 36.5 - Prob. 2MCCh. 36.5 - Prob. 3MCCh. 36.5 - Prob. 4MCCh. 36.6 - Prob. 1MCCh. 36.6 - Prob. 2MCCh. 36 - Prob. 1MCQCh. 36 - Prob. 2MCQCh. 36 - Prob. 3MCQCh. 36 - Prob. 4MCQCh. 36 - Prob. 5MCQCh. 36 - Prob. 6MCQCh. 36 - Prob. 1WIOCh. 36 - Prob. 2WIOCh. 36 - Prob. 3WIOCh. 36 - Prob. 4WIOCh. 36 - Prob. 5WIOCh. 36 - Prob. 6WIOCh. 36 - Prob. 7WIOCh. 36 - Prob. 8WIOCh. 36 - Prob. 9WIOCh. 36 - In the 1930s. the population geneticist J.B.S....Ch. 36 - Prob. 1PITCh. 36 - Prob. 2PITCh. 36 - Prob. 3PIT
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- Which of the following situations will lead to natural selection? a. The seeds of two plants land near each other and one grows larger than the other. b. Two types of fish eat the same kind of food, and one is better able to gather food than the other. c. Male lions compete for the right to mate with females, with only one possible winner. d. all of the abovearrow_forwardWhich of the following traits would you expect to be under weakest selection? Explain your answer. The development of prostate cancer in older male humans The development of digits in frogs The silver hair color on silver back male gorillas The dance choreography in peacock spidersarrow_forwardWhat is Natural Selection? (Use the follow-up questions below to construct your answer) How did different environments 'select' for certain beaks? What will happen to the birds that are no longer well suited to eat the type of food the island provides?arrow_forward
- Which ability to learn will evolve in a population of sticklebacks living in predator-rich environment and under which natural selection pressure?arrow_forwardSexual selection tends to cause bigger size,more elaborate weaponry, or brighter colors in males. Is this an example of stabilizing,directional, or disruptive selection?arrow_forwardWhat result in adaptation comes from natural selection?arrow_forward
- How can behaviors be adaptive? Provide an example that includes support from the five tenants of evolution by natural selection: 1) overproduction of offspring, 2) variation in the population, 3) competition for resources, 4) adaptive advantage for some, and 5) reproduction for those who survivearrow_forwardIn your own words, how does Competition and selection support natural selection? Use at least 1 example from the Beaks of Finches lab in your answer.arrow_forwardWhich of the following is not required for a behavioral trait toevolve by natural selection?(A) In each individual, the form of the behavior is determinedentirely by genes.(B) The behavior varies among individuals.(C) An individual’s reproductive success depends in part onhow the behavior is performed.(D) Some component of the behavior is genetically inherited.arrow_forward
- Robins typically lay four eggs. Four eggs allow the offspring to be well fed, whereas larger clutches may result in malnourished chicks that have a lower chance of survival. Fewer than four eggs per clutch may result in no surviving offspring if the eggs are preyed upon. Which type of pattern of natural selection MOST LIKELY acts to keep four eggs the most common clutch size?arrow_forwardWhich of the following best explains the phrase “survival of the fittest” in terms of evolution by natural selection? The strongest and fastest individuals will always survive and reproduce more often. The individuals that are the healthiest will always get more resources and survive better. Only individuals that have the most mates will survive with limited resources. The individuals that survive better and reproduce more often will pass their traits on more often.arrow_forwardHow does competition influence natural selection? Is the presence of competitors a selective force?arrow_forward
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