EBK BIOLOGY: CONCEPTS AND APPLICATIONS
9th Edition
ISBN: 8220100477805
Author: STARR
Publisher: CENGAGE L
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Chapter 17, Problem 7SQ
Summary Introduction
Introduction:
Natural selection is a progressive evolutionary process which is brought about by the alteration in the inheritable characteristics in a group of individuals or populations over generations. This helps in the differential selection of the species and their reproduction based on the ability to adapt.
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Evolution______ . a. is change in a line of descent b. is the same as natural selection c. is the goal of natural selection d. explains the origin of life
Which of the following is false regarding artificial selection?
B. Artificial selection is responsible for creating new varieties of plants and animals
D. Many if not most organisms created through artificial selection could not survive without
humans
E. None of the above---all are true statements
A. Darwin's understanding of artificial selection helped him arrive at his theory of evolution
by natural selection
C. Artificial selection is caused through the process of selective breeding
How is genetic drift like natural selection?
A. They both depend upon the founder effect
B. Both usually bring about adaptation to the environment
C. They both cause gene frequency changes
D. All of these are correct
Mutations are __________.
A. The sole source of variation in a sexually reproducing organisms
B. The ultimate source of variation in sexually reproducing organisms
C. Both genetic and chromosomal in nature
D. All of these are correct
Chapter 17 Solutions
EBK BIOLOGY: CONCEPTS AND APPLICATIONS
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- ______is the original source of new alleles. a. Mutation c. Gene flow b. Natural selection d. Genetic driftarrow_forwardWhich 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_forwardRate of evolution by selection is highest for an allele when it is _________ . a. wild type b. recessive c. dominant d. co-dominantarrow_forward
- Evolution results from A. mutations. B. natural selection. C. genetic drift. D. gene flow. E. All of the choices are correct.arrow_forward1. ____ occurs when allele frequencies change over generation due to random chance. a. extinction b. gene flow c. natural selection d. mutationarrow_forwardThe word “theory” in theory of evolution is best replaced by ________. a. fact b. hypothesis c. idea d. alternate explanationarrow_forward
- The process in which environmental pressures result in the differential survival and reproduction of individuals of a population is called_____ . a. catastrophism c. natural selection b. evolution d. geneticsarrow_forwardWhich of the following factors led to evolution? A. Variation of members of species B. Gene flow C. Variation within a species D. Genetic traits Selection is obvious when certain members of species _______. A. Reproduce more than others B. Grow long necks to reach food C. Need not work as hard D. Become prettierarrow_forwardwhich of these is not a central rule of natural selection a, fitness to the general health and strength of an organism b, natural selection can only act on traits that affect reproduction c, natural selection can't occur without population variation d, a trait must be inherited if natural selection is to act on itarrow_forward
- www.ck 12.org The Theory of Evolution C. acquired inheritance. d. geologic change. 6. The type of evolution observed by Peter and Rosemary Grant on the Galapagos Islands is referred to as a. macroevolution. b. comparative evolution. C. microevolution. d. stabilizing evolution. 7. A gene pool consists of all the genes in a(n) goloid to lle vinu b a. species. Bypopulation. individual. d. genome. 8. All of the following are forces of evolution except a. genetic drift. b. mutation. C. gene flow. (d. gradualism. 9. The evolution of sexual dimorphism comes about through a. directional selection. b. artificial selection. c. disruptive selection. d, none of the above. 10. The evolution of Kaibab squirrels is an example of a. coevolution. b. sympatric speciation. C. symbiotic evolution. d. allopatric speciation. True or False Write true if the statement is true or false if the statement is false.arrow_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_forwardDarwin’s Theory of Natural Selection occurs in 4 steps.Which of the following is NOT one of these four steps?a. Differentiationb. Selectionc. Competitiond. Overproductionarrow_forward
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