WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
3rd Edition
ISBN: 9781319103316
Author: PHELAN
Publisher: Macmillan Higher Education
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Chapter 10, Problem 11MC
Summary Introduction
Introduction:
Darwin's theory of evolution states that changes slowly and steadily accumulate over time to cause evolution. Punctuated equilibrium refers to the theory that short bursts of evolution are followed by long periods of very little change.
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Discuss 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. Paleobiology
Which of the following statement about the outcome of the evolution of a new species through hybridization is false?
a.The new species may have traits that allow it to inhibit environments different from both parental species.
b.The new species is always an intermediate of the two parental species
c.The new species may have greater genetic diversity and greater trait diversity than the parental species.
d.None of the above
What are the two ways of looking into evolution in detail?
a.Micro frequency change and ascent with modification
b.Genotypic and phenotypic modification
c.DNA frequency change and inheritance modification
d.Allele frequency change and descent with modification
Natural selection increases the frequencies of advantageous alleles and decreases deleterious alleles' frequencies. What are the three categories of natural selection depending on the favored traits?
a.Directive, selective and native
b.Indicative, normative and fixative
c.Directional, stabilizing and…
Describe the modem theory of evolution 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
Chapter 10 Solutions
WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
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- The 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_forwardBiological evolution is best defined as A. the process of direct observation B. unchanging nature of life on earth C. change in a populations' genetic charteristics over time D. adaptations to common decentarrow_forwardThe 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.arrow_forward
- Alfred Russel Wallace and Charles Darwin argued that evolution by means of natural selection involves all of the following steps except: a. variation is present in all species b. species can produce more offspring than the environment can sustain c. all individuals within a species have equal chances to improve their fitness d. those individuals that are more fit will survive and reproduce in the greatest numbers e. over time, the species will evolve as the more fit individuals replace the less fit individualsarrow_forwardWhich of the following patterns of evolution is most supported by the fossil record? a. Descent with modification b. Hybrid speciation c. Stasis d. Punctuated disequilibriumarrow_forwardWhich of the following statements is not true about the concept of natural selection? Group of answer choices A-Geographical isolation contributes to the formation of new species as individuals begin to adapt to different environments B-Natural selection explains the increase in the yield of kernels per corn plant over the last several thousand years C-Infers that later generations may be distinct from ancestral ones, or a new species can appear D-Selective pressures cause distinct species to develop E-Suggests that over long periods of geological time, successful variations accumulate in a populationarrow_forward
- Which of the following best explains the role mutations play in natural selection?A. Most mutations are negative and result in the extinction of the entire speciesB. Mutations may appear for one or two generations, but they usually disappear quickly.C. If the environment changes, an existing organism develops a mutation that will help them to survive.D. Some mutations give individuals an advantage in their environment, allowing them to survive and reproduce.D is my answer is it correct?arrow_forwardWhich of the following statements is not compatible with Darwin's theory? a.All organisms have arisen by descent with modification . b.Evolution has altered and diversified ancestral species. c.Evolution occurs inindividuals rather than in groups. d.Natural selection eliminates unsuccessful variations. e.Evolution occurs because some individuals function betterthan others in a particular environment.arrow_forwardWhat 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.arrow_forward
- Which of the following statements is inaccurate? Multiple choice (one answer is correct) a.The genetic variation that occurs in a population from mutation is non-random b.Natural selection is the only mechanism that consistently causes adaptive evolution c.Evidence demonstrates that whales evolved from land-dwelling organisms d.Natural selection acts on populationsarrow_forwardWhich of the following is not a component of evolution bynatural selection?a. Variation exists within a population.b. Organisms compete for resources.c. Individuals have different reproductive success.d. Organisms adapt due to environmental changes.e. Species are fixed.arrow_forwardWhich of the following is NOT true of biological evolution? a. It always involves genetic changes b. it always involves groups of individuals c. it requires the existence of genetic variation within a population d. it can include non-genetic changes in an organism, if the organism is complex enougharrow_forward
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