Campbell Biology In Focus, Loose-leaf Edition (3rd Edition)
3rd Edition
ISBN: 9780134895727
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 7TYU
SCIENTIFIC INQUIRY
Based on the results of the mouse coloration case study, propose a hypothesis researchers might use to further study the role or predators in the natural selection process
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Compare and contrast the five patterns of natural selection that drive adaptation.
Define natural selection using the 5 points below to explain its role in understanding primate behavior.
(1) there is variation among individuals;
(2) some of that variation is heritable;
(3) there is always competition between individuals for resources;
(4) some variants outcompete other variants and leave more offspring;
(5) to the extent that the parent's traits are heritable, then a larger portion of the next generation will reflect those traits.
Using some contemporary examples, explain how natural selection results in evolutionary change.
Chapter 1 Solutions
Campbell Biology In Focus, Loose-leaf Edition (3rd Edition)
Ch. 1.1 - Starting with the molecular level in Figure 1.3,...Ch. 1.1 - Identify me theme or themes exemplified by (a) the...Ch. 1.1 - WHAT IF? For each theme discussed in this section...Ch. 1.2 - How is a mailing address analogous to biologys...Ch. 1.2 - Explain why editing is an appropriate metaphor for...Ch. 1.2 - DRAW IT Recent evidence indicates that fungi and...Ch. 1.3 - Contrast inductive reasoning with deductive...Ch. 1.3 - What qualitative observation led to the...Ch. 1.3 - Why is natural selection called a theory?Ch. 1.3 - How does science differ from technology?
Ch. 1 - All the organisms on your campus make up A. an...Ch. 1 - Which of the following best demonstrates the unity...Ch. 1 - Prob. 3TYUCh. 1 - Prob. 4TYUCh. 1 - Which of the following best describes the logic of...Ch. 1 - DRAW IT With rough sketches, draw a biological...Ch. 1 - SCIENTIFIC INQUIRY Based on the results of the...Ch. 1 - Prob. 8TYUCh. 1 - FOCUS ON EVOLUTION In a short essay (100-150),...Ch. 1 - FOCUS ON INFORMATION A typical prokaryotic cell...Ch. 1 - SYNTHESI7F YOUR KNOWLEDGE Can you pick out the...
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- When discussing natural selection and behaviour, we often say that members of a species have certain behavioural traits because those traits are adaptive, in the sense that they increase inclusive fitness relative to alternative forms of those traits that have existed in the past. Instead of emphasizing the adaptiveness of behavioural traits, some biologists describe natural selection as a process that operates on nervous system traits, increasing the prevalence within a population of particular patterns of neural circuitry and neurobiological mechanisms. As an alternative to emphasizing either the behaviour or the nervous system, some biologists describe natural selection as a process that operates on genes; according to this perspective, certain forms of certain genes (ie., particular alleles) increase in prevalence within a population relative to alternative forms of those genes. Which, if any, of these three perspectives on natural selection and behaviour do you think is the most…arrow_forwardAlternatively, selection may be performed during mating, where mating is done after a selection process of one of the sexes. The surviving individuals can pass on their (1) to the next generation. When these variations are sustained over a long time and the population changes so that it can no longer (2) with the parent population, a new species is said to have evolved.arrow_forwardSimmons and Scheepers in their article Winning by a Neck present evidence that the long neck of the giraffe is the result of: Select one: a.genetic drift b.inheritance of acquired characteristics c.intersexual selection d.intrasexual selection e.natural selectionarrow_forward
- Describe how natural selection can create new species through reinforcement.arrow_forwardSexual and Ecological selection often oppose each other: give 2 examplesarrow_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_forward
- Which aspect(s) of natural selection is(are) illustrated by the figure below? Check ALL answers that apply. A. Variation among individuals must be genetically transmissible to the next generation. B. Variation must exist in a population. C. Variation among individuals leads to differences in lifetime reproductive success. D. More individuals are produced each generation than the environment can support, resulting in competition for survival.arrow_forwardApply the VIDA table to the evolution of sickle cell disease to justify whether it is an instance of evolution by natural selection. Answer the following questions. Is there variation in this trait in the population? How exactly does it vary? Is the trait at least partly inherited? Is there selection for this trait in a particular environment? (What is the selective pressure? And how does a trait give an advantage or disadvantage in that environment?) What is the evidence that this trait makes organisms better adapted to their environment?arrow_forwardMatch the following examples with the type of natural selection they are describing: .A Stabilizing selection B. Disruptive selection C. Directional selection Natural selection selecting against very high and very low testosterone levels in a population, leading to relatively stable testosterone levels over time A finch species arriving to an island with only insects and large seeds, with natural selection favoring very thin and very thick beaks, but not medium beaks. A population of bacteria evolving to have an increasingly higher resistance against antibiotics A rodent population evolving to a progressively smaller size to enable better thermoregulationarrow_forward
- List and explain the necessary conditions for evaluation due to natural selection to occur.arrow_forward2. What does the text describe? a) experiments completed to analyze the differences and similarities between animals bred for certain traits and animals not bred for certain traits b) the attitudes of different societies to selective breeding c) different examples of animals that have evolved through adaptation to their surroundings d) different examples of selective breeding and the impact of selective breeding on some animalsarrow_forwardConsider this example. On a tropical island, there are iguanas that are green, blue, and yellow. The green iguanas can camouflage in the green grass, the yellow iguanas can camouflage in the dry, yellow grass. And the blue iguanas try to run fast to get away from prey. Over time, the blue iguanas disappear on the island, while the green and yellow iguanas survive. What type of natural selection is this? A. Balancing or Stabilizing selection B. Disruptive or Diversifying selection C. Directional selection D. Sexual selectionarrow_forward
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