Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 17, Problem 14SQ
Summary Introduction
Introduction:
Natural selection is a process where an organism learns and adapts to a changed environment. This describes a differential survival rate of organisms to a particular varied environment. Natural selection is a key mechanism for evolution where the individual acquires genetic characteristics that will be suitable for the change in environment. These altered traits are also passed to the offspring.
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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
______is the original source of new alleles. a. Mutation c. Gene flow b. Natural selection d. Genetic drift
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
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 17 - Prob. 1DAACh. 17 - Prob. 2DAACh. 17 - Prob. 3DAACh. 17 - Prob. 4DAACh. 17 - Prob. 1SQCh. 17 - A neutral mutation _______ . a. has a pH of 7.0 b....Ch. 17 - Change in allele frequency of a population is...Ch. 17 - A wild population of pea plants has two alleles...Ch. 17 - Which of the following is not part of how we...Ch. 17 - Prob. 6SQ
Ch. 17 - The persistence of sickle-cell anemia in a...Ch. 17 - ___ tends to keep populations of a species similar...Ch. 17 - Which is required for a population to evolve? a....Ch. 17 - Prob. 10SQCh. 17 - After fire devastates all of the trees in a wide...Ch. 17 - True or false? Inbreeding can increase the...Ch. 17 - The difference between sympatric and parapatric...Ch. 17 - Prob. 14SQCh. 17 - Match the evolution concepts. ____ gene flow a....Ch. 17 - Species have traditionally been characterized as...Ch. 17 - Rama the cama, a llama-camel hybrid, was born in...Ch. 17 - Two species or antelope, one from Africa, the...Ch. 17 - Prob. 4CTCh. 17 - About 70 percent of flowering plants are...
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- 1. ____ occurs when allele frequencies change over generation due to random chance. a. extinction b. gene flow c. natural selection d. mutationarrow_forwardWhich 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 breedingarrow_forwardVariation among pre-cells was due to ________. A. the bottleneck effect B. natural selection C. mutation D. genetic drift 82.arrow_forward
- Evolution results from A. mutations. B. natural selection. C. genetic drift. D. gene flow. E. All of the choices are correct.arrow_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_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_forward
- What is Natural Selection? A. Inherited traits change over time. B. Organisms develop traits that allow them to survive and reproduce. C. Traits that offer and advantage/benefit will be passed on to offspring. Only A & C Only A All are correct: A, B, & C Only A & Barrow_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
- 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_forwardIn white sands national monument in New Mexico there is a population of very pale lizards whose pale color matches the sand. Other lizard populations of the same species that live on rock are dark in color. What evolutionary is probably responsible for the pale color of the white sands lizards. Group of answer choices A. Mutation B. Sexual Selection C. Natural Selection D. Genetic Drift E. Migration (gene flow)arrow_forwardThe 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_forward
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