WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
3rd Edition
ISBN: 9781319103316
Author: PHELAN
Publisher: Macmillan Higher Education
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Chapter 8, Problem 14SA
Summary Introduction
To analyze:
Three reasons why Darwin was wrong.
Introduction:
According to Darwin, natural selection is a process of evolution that ultimately leads to perfection of organisms. But it may not be the case always.
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Charles Darwin is credited with outlining the principles of evolution by natural selection. What aspects of the scientific method can be identified in Darwin's work?
What are Darwin's four observations concerning natural selection? List and briefly explain each one with an example. How does natural selection impact evolution?
Charles Darwin and Alfred Russel Wallace accepted all of the following claims about evolution by means of natural selection, with the exception of:
over time, the species will evolve as the more fit individuals replace the less fit individuals
species can produce more offspring than the environment can sustain
those individuals that are more fit will survive and reproduce in the greatest numbers
variation is present among individuals of all species
all individuals within a species have equal chances to improve their fitness
Chapter 8 Solutions
WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
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- In Darwin's theory of natural selection, which of the following is a source of evolution: a.Individuals who do not vary from their progenitors. b.Intelligent and purposeful design. c.Individuals with random mutations who are able to reproduce. d.Individuals with random mutations who die without reproducing.arrow_forwardDarwin was the first person to note that evolutionary outcomes are probabilistic, meaning that they depend on the likelihood of outcomes rather than on certainties. Explain what this means in the context of Darwin’s theory of how evolution occurs? That is, how is Darwin’s theory is dependent upon the chances of a certain outcome and not on the absolute certainty of any particular outcome?arrow_forwardIn Darwin's theory of natural selection, which of the following is a source of evolution: a. Individuals with random mutations who die without reproducing. b. Individuals with random mutations who are able to reproduce. c. Individuals who do not vary from their progenitors. d. Intelligent and purposeful design.arrow_forward
- What are the facts that support Darwin’s theory of Natural selection?arrow_forwardWhich of the following are important ideas used by Darwin were based on views expressed by Lamarck? (Choose all that apply) Hint: review slide presentation which provides more detail than textbook O Changes that an organism acquires during its lifetime are passed to its offspring "acquired traits". D all species change through time Organisms change in response to their environment. New characteristics are passed from one generation to the next.arrow_forwardWhat observations that Darwin made on his round-the-world voyage influenced his later thoughts about evolution?arrow_forward
- Which of the following is not part of Darwins mechanism of evolution? (a) differential reproductive success (b) variation in a population (c) inheritance of acquired (nongenetic) traits (d) overproduction of offspring (e) struggle for existencearrow_forwardWhich of the following statements regarding Darwin and his theory of evolution is false?arrow_forwardDescribe the events that led to Darwin’s conclusion that evolution occurred through natural selection.arrow_forward
- Of the 500 eggs produced by a particular frog, only 10% developed into adult frogs. Which part of Darwin’s theory does this best illustrate? favorable mutations are not inherited. mutations occur by chance. there is a struggle for survival among organisms. populations are not stable.arrow_forwardWhen Darwin wrote On the Origin of Species, he spent a significant amount of time on a topic he considered to be (in his words) “one special difficulty” to his theory: eusociality. Explain why eusociality constitutes a “difficulty” to the theory of evolution by natural selection, and how evolutionary biologists have been able to explain its evolutionarrow_forwardDescribe the observations and inferences that compose Darwin’s theory of natural selection.arrow_forward
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