Q: We included spatial refuges, predator satiation, and size in our
We included spatial refuges, predator satiation, and size in our discussions of the role played by refuges in the persistence of exploited species. How could time act as a refuge? Explain how natural...
See AnswerQ: Outline how the honeyguide-human mutualism could have evolved from an
Outline how the honeyguide-human mutualism could have evolved from an earlier mutualism between honeyguides and honey badgers. In many parts of Africa today, people have begun to abandon traditional h...
See AnswerQ: The rapid succession shown by the Sycamore Creek ecosystem is impressive.
The rapid succession shown by the Sycamore Creek ecosystem is impressive. How might natural selection influence the life cycles of the organisms living in Sycamore Creek? Imagine a creek that floods a...
See AnswerQ: How did the studies of Scott Carroll and his colleagues demonstrate rapid
How did the studies of Scott Carroll and his colleagues demonstrate rapid evolutionary adaptation to introduced soapberry plants? What advantages do a group of organisms, such as soapberry bugs, offer...
See AnswerQ: J. L. Mosser and colleagues (1974) found that
J. L. Mosser and colleagues (1974) found that populations of the bacterium Sulfolobus living at different temperatures had different optimal temperatures for sulfur oxidation. Use natural selection to...
See AnswerQ: Some plants and grasshoppers in hot environments have reflective body surfaces,
Some plants and grasshoppers in hot environments have reflective body surfaces, which make their radiative heat gain, H r, less than it would be otherwise. If you were to design a tiger beetle that co...
See AnswerQ: In most of the examples discussed in chapter 5, we saw
In most of the examples discussed in chapter 5, we saw a close match between the characteristics of organisms and their environment. However, natural selection does not always produce an optimal, or e...
See AnswerQ: What kinds of animals would you expect to have type 1,
What kinds of animals would you expect to have type 1, 2, or 3 functional responses? How should natural selection for better prey defense affect the height of functional response curves? How should na...
See AnswerQ: Endler (1980) pointed out that though field observations are consistent
Endler (1980) pointed out that though field observations are consistent with the hypothesis that predators may exert natural selection on guppy coloration, some other factors in the environment could...
See AnswerQ: Under what conditions should natural selection favor production of many small offspring
Under what conditions should natural selection favor production of many small offspring versus the production of a few well provisioned offspring?
See AnswerQ: With regard to biological evolution, which of the following statements is
With regard to biological evolution, which of the following statements is incorrect? Explain why. A. During its lifetime, an animal evolves to become better adapted to its environment. B. The proces...
See AnswerQ: Does this form of natural selection favor polymorphism? Explain why or
Does this form of natural selection favor polymorphism? Explain why or why not.
See AnswerQ: What are the similarities and differences between natural selection and selective breeding
What are the similarities and differences between natural selection and selective breeding?
See AnswerQ: In the Grants’ study of the medium ground finch, do you
In the Grants’ study of the medium ground finch, do you think the pattern of natural selection was directional, stabilizing, disruptive, or balancing? Explain your answer. If the environment remained...
See AnswerQ: As discussed in Chapter 27, genetic variation is prevalent in natural
As discussed in Chapter 27, genetic variation is prevalent in natural populations. This variation is revealed in the DNA sequencing of genes. Based on the neutral theory of evolution, discuss the rela...
See AnswerQ: Most new mutations are detrimental, yet rare beneficial mutations can be
Most new mutations are detrimental, yet rare beneficial mutations can be adaptive. With regard to the fate of new mutations, discuss whether you think it is more important for natural selection to sel...
See AnswerQ: In the study of the effect of natural selection on a population
In the study of the effect of natural selection on a population, we encounter the differential equation dq/dt = -.0001q2 (1 - q), where q is the frequency of a gene a and the selection pressure is a...
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