Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 24, Problem 8TY
Summary Introduction
Introduction: The term punctuated equilibrium describes evolutionary biology. This states that when a species has presented in a fossil record it's population will become stabilized and will not show much of evolutionary change in its geological history.
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Students have asked these similar questions
In general, how does contemporary evolutionary theory account for the evolution of complex adaptations?
a.
genetic drift conserving individually costly mutations until their joint benefits are realized.
b.
directed mutation for new variants that work well together.
c.
successive spread of several small mutations that each provide some benefit when it first arises.
d.
the power of irreducible complexity.
e.
None of the above is correct.
The theory of evolution is most accurately described as
Group of answer choices
A. Nn opinion that some scientists hold about how life originated on Earth.
B. An overarching explanation, supported by much evidence, for how populations change over time and new species arise from ancestral species.
C. One possible explanation, among several scientific alternatives, about how species have come into existence.
D. An educated guess about how species originate.
E. An idea about how acquired characteristics are passed on to subsequent generations.
What is true about evolution by natural selection?
a.
It is a largely random process.
b.
Homology shows that convergence is a useful tool for deducing adaptive function.
c.
Mothers are invariably members of the same species as their offspring, so selection can never create new species.
d.
Harmful recessive genes are eliminated more rapidly than harmful dominant genes.
e.
None of the above is true.
Chapter 24 Solutions
Biology
Ch. 24.1 - Can you think of another example of two different...Ch. 24.1 - Prob. 1CSCh. 24.1 - Is temporal isolation an example of a prezygotic...Ch. 24.1 - Prob. 3CCCh. 24.2 - Prob. 1CSCh. 24.2 - Prob. 1EQCh. 24.2 - Prob. 2EQCh. 24.2 - Prob. 3EQCh. 24.2 - Prob. 1CCCh. 24.2 - Prob. 2CC
Ch. 24.4 - Evo-Devo: Evolutionary Developmental Biology...Ch. 24.4 - Prob. 1CSCh. 24.4 - Prob. 2CCCh. 24 - Macroevolution refers to evolutionary changes that...Ch. 24 - Prob. 2TYCh. 24 - Prob. 3TYCh. 24 - Prob. 4TYCh. 24 - Prob. 5TYCh. 24 - Prob. 6TYCh. 24 - Prob. 7TYCh. 24 - Prob. 8TYCh. 24 - Prob. 9TYCh. 24 - Prob. 10TYCh. 24 - What is the key difference between prezygotic and...Ch. 24 - What are the key differences between gradualism...Ch. 24 - Prob. 3CQCh. 24 - Prob. 1COQCh. 24 - Discuss the type of speciation (allopatric or...
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- describe the modern theory of evoluton and discuss how it is supported by evidence from two of the following three areas a.population genetics b.molecular biology c.comparative anatomy and embryology evolution is one of the major unifying concepts of modern biology.explain the mechanism that lead to evolutionary change.describe how scientists use each of the following as evidence fornevolution a.bacterial resistance to antibiotics b.comparative biochemistry c.the fossil recordsarrow_forwardWhich of the following is correct regarding the process ofevolutionary change?a. an adapted individual is the one that survives and passes on itsgenes to offspring.b. changes in phenotype are passed on by way of the genotype tothe next generation.c. organisms are able to bring about a change in their phenotype.d. evolution is striving toward particular traits.e. All of these are correct.arrow_forwardDiscuss the merits and or demerits of each of the following evidences of evolution A. Comparative Anatomy And Morphology B. Vestigial Structures C. Atavismorreversion D. Comparativeembryology E. Biogeography, F. Connecting links G. Taxonomy H. Biochemistry And Physiology I. Molecular records J. Cytology K. Genetics L. Paleobiologyarrow_forward
- Which of the following statements is true? A. Evolution involves a change in gene frequencies from one generation to the next B. Natural selection is the only mechanism through which animals evolve to become adapted to their environment C. Genetic drift results in evolution but not adaptation to the environment D. For natural selection to occur, differences in genetically-based traits must result in differential reproductive success E. All of the above are truearrow_forwardWhich of the following statements is false? a. Gradual speciation is most likely to occur in a large population that lives in a stable climate. b. Punctuated equilibrium is unlikely to occur in a large population that lives in a stable climate. c. Gradual speciation and punctuated equilibrium both result in the divergence of species. d. Gradual speciation is most likely to occur in a small population that experiences a rapid change in its environment.arrow_forwardPlace the following events in the order in which they are most likely to occur by numbering them from 1 to 5. a. Speciation occurs. b. Genetic divergence takes place. c. Geographic barrier arises. d. Gene flow is discontinued. e. Species adapts to a new environment.arrow_forward
- Which of the following most likely demonstrates that classification is the basis of evolutionary relatedness? A. Organisms that share similar characteristics are impliedly understood to have common ancestors, thus having an evolutionary relationship. B. Classification is to organize organisms into groups based on their differences and similarities and evolutionary history, so as evolution changes, classification will also change C. Classification based on evolutionary relatedness always infer that all organisms that evolved similarly shares the same history. D. Homologous structures among organisms depicts the same evolutionary history or paths.arrow_forwardWhich of the following statements is true? A. Evolution involves a change in gene frequencies from one generation to the next B. Natural selection is the only mechanism through which animals evolve to become adapted to their environment C. Genetic drift results in evolution but not adaptation to the environment D. For natural selection to occur, differences in genetically-based traits must result in differential reproductive success E. All of the above are true A blastopore... A. Is the opening through which food enters a gastrovascular cavity B. Is an opening to the water-filled central cavity of a sponge C. Is the opening to the primitive gut that gives rise to the mouth in a deuterostome eucoelomate D. Is the open end of the archenteron that appears during gastrulation E. None of the abovearrow_forwardResearchers have found fossils of Eocene horse species in Colorado. Deeper deposits contain smaller species, and more recent deposits contain larger species. How does this observation support the theory of evolution? A. It provides evidence that species change over time. B. It does not support the theory of evolution. C. It shows that all species are related to each other. D. It proves that environments have changed over time. E. It suggests that species are unchanging and of recent origin.arrow_forward
- Which of the following statements about evolution is false?a. Gene mutations alone amount to evolution. b. Genetic drift and gene flow are modern theories of evolution.c. Natural selection contributes to evolution.d. Chimpanzees evolved from a hominoid ancestor.arrow_forwardWhich of the following most accurately describes mutations? a. They typically have immediate and impactful evolutionary effects on populations. b. They are required for all populations to evolve. c. They are always deleterious. d. They occur so infrequently that most populations to harbor very little variation.arrow_forwardThe most accurate definition of biological evolution from the following is... a. extinction and speciation b. the change in allele frequencies over time c. survival of the fittest d. the origin of new speciesarrow_forward
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