Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 22, Problem 16TYU
Summary Introduction
To explain: Whether the idea that evolution in humans has gone from survival of the fittest to survival of almost everyone due to modern medicine and better sanitation is valid or not.
Concept introduction: Human beings are the first animals to undergo organic evolution, cultural and social evolution. Human beings are the highly advanced living organisms because they have greater intelligence and information transmission in the form of knowledge. They are the first animals to treat the diseases they are infected with.
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Evolutionary biologists often say that evolution “selects for outcomes” not for the particular genetic changes that lead to that adaptive outcome. Given that perspective, is it surprising that different gene mutations might be involved in the evolution of the same trait (such as light skin or adaptation to living in high mountains)? Why or why not?
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Chapter 22 Solutions
Biology (MindTap Course List)
Ch. 22.1 - Describe the structural adaptations that primates...Ch. 22.1 - Prob. 1CCh. 22.1 - Prob. 2CCh. 22.2 - Prob. 2LOCh. 22.2 - Distinguish among anthropoids, hominoids, and...Ch. 22.2 - Prob. 1CCh. 22.2 - Prob. 2CCh. 22.3 - Describe skeletal and skull differences between...Ch. 22.3 - Prob. 5LOCh. 22.3 - Prob. 6LO
Ch. 22.3 - Prob. 7LOCh. 22.3 - Prob. 1CCh. 22.3 - Prob. 2CCh. 22.3 - Prob. 3CCh. 22.3 - Prob. 4CCh. 22.3 - Prob. 5CCh. 22.4 - What are the generally recognized cultural stages...Ch. 22.4 - Prob. 1CCh. 22 - Prob. 1TYUCh. 22 - The anthropoids are more closely related to...Ch. 22 - Prob. 3TYUCh. 22 - Prob. 4TYUCh. 22 - Scientists collectively call humans and their...Ch. 22 - Prob. 6TYUCh. 22 - Some scientists now think that fossils identified...Ch. 22 - Prob. 8TYUCh. 22 - ___________ were an early group of humans with...Ch. 22 - The modern human skull lacks (a) small canines (b)...Ch. 22 - Prob. 11TYUCh. 22 - Prob. 12TYUCh. 22 - If you were evaluating whether other early humans...Ch. 22 - Prob. 14TYUCh. 22 - EVOLUTION LINK What was the common ancestor of...Ch. 22 - Prob. 16TYUCh. 22 - Prob. 17TYUCh. 22 - Prob. 18TYU
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- EVOLUTION LINK Write short paragraphs explaining each of the following statements: (a) Natural selection chooses from among the individuals in a population those most suited to current environmental conditions. It does not guarantee survival under future conditions. (b) Individuals do not evolve, but populations do. (c) The organisms that exist today do so because their ancestors had traits that allowed them and their offspring to thrive. (d) At the molecular level, evolution can take place by the replacement of one nucleotide by another. (e) Evolution is said to have occurred within a population when measurable genetic changes are detected.arrow_forwardIs gene transfer a form of eugenics? Is it advantageous to use gene transfer to eliminate some genetic disorders? Can this and other technology be used to influence the evolution of our species? Should there be guidelines for the use of genetic technology to control its application to human evolution? Who should create and enforce these guidelines?arrow_forwardThe concept of evolution has always been connected with some notion of progress–natural selection pushing populations toward better and better adaptations to create "perfect organisms." How would you argue that evolution does not craft perfect organisms?arrow_forward
- Evolution is sometimes characterized as “survival of the fittest.” Is this wording consistent with an evolutionary biologist’s definitions of fitness and natural selection? Is it a good way to think about evolution or a poor one?arrow_forwardWhat are two evolutionary explanations for why certain organisms might NOT blend into their environment (e.g. bright colors,loud songs , or stand out )? Why do you think evolution is sometimes seen at odds with religion ?arrow_forwardWhy does evolution matter now? List 5 facts of one of the events in the evolution timeline. Focus on what was discovered, how the evidence was found and when scientists learned about these facts.arrow_forward
- The concepts of natural selection and evolution are central to how most biologists understand and interpret the world, and yet the theory of evolution is contrary to the beliefs of many religious groups. Why do you think this theory is so important to science and so strongly opposed by others? What evidence would be required to convince opponents of evolution?arrow_forwardWith regard to biological evolution, which of the following statements is incorrect? Explain why.A. During its lifetime, an animal evolves to become better adaptedto its environment.B. The process of biological evolution has produced species thatare better adapted to their environments.C. When an animal is better adapted to its environment, the process of natural selection makes it more likely that the animalwill reproduce.arrow_forwardNatural selection allows certain species to survive. The organisms that survive are those best adapted to their environment. Does natural selection make organisms more complex and perfect?arrow_forward
- Intelligent design is the theory that life is too complex to have evolved randomly. The eye is often cited as an example, arguing that its complexity argues for the presence of a creator guiding its development. What use is half an eye or a partial wing? It is a popular idea because it does not deny the observable fact of evolution, while leaving room for the presence of God. Is intelligent design a viable scientific theory? Why or why not?arrow_forwardMosquitoes can carry and transmit many diseases to humansIn the past, the insecticide DDT was heavily used to reduce mosquito populations in order to reduce instances of disease transmission. However, after some time, mosquito populations developed a resistance to DDT, which made the DDT less effective in reducing mosquito populations . Based on what you've learned about natural selection, in 3-5 sentences, describe how mosquitoes may have come to develop this resistance.arrow_forwardEvolution Basics Which of the following things are likely to cause evolution in a population? Try to keep all causes of evolution in mind. The thickness in fur coat for particular small mammal is determined by the average temperature in its environment. Over time, the environment gets warmer. A mutation introduces a new wing color in a group of butterflies. A flood washes away 3/4 of a population of ground squirrels. Individuals migrate between 2 populations that have the same gene pool. Within a lizard population, there is genetic variation in the length of the tail. The neighborhood cats chase the lizaards, and have an easier time catching the ones with long tails.arrow_forward
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