Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
14th Edition
ISBN: 9781305775480
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 17, Problem 2SQ
Which is required for evolution to occur in a population?
- a. random mating
- b. selection pressure
- c. gene flow
- d. none of the above
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Which one of the four forces of evolution has the smallest effect on changing allele frequencies?
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Chapter 17 Solutions
Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
Ch. 17 - ___ is the original source of new alleles. a....Ch. 17 - Which is required for evolution to occur in a...Ch. 17 - Prob. 3SQCh. 17 - Prob. 4SQCh. 17 - The persistence of sickle-cell anemia in a...Ch. 17 - ___ tends to keep populations of a species similar...Ch. 17 - The theory of natural selection does not explain...Ch. 17 - Prob. 1DAACh. 17 - Prob. 2DAACh. 17 - Prob. 3DAA
Ch. 17 - Prob. 4DAACh. 17 - Which of the following is not part of how we...Ch. 17 - Sex in many birds is typically preceded by an...Ch. 17 - The difference between sympatric and parapatric...Ch. 17 - A fire devastates all trees in a wide swath of...Ch. 17 - Match the evolution concepts. ____ gene flow a....Ch. 17 - Change in allele frequency of a population is...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. 4CT
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- What is the term for organisms producing different phenotypes due to differences in the environment? a. Genetic variation b. Additive variation c. Phenotypic plasticity d. Reaction normarrow_forwardAfter a highway is destroyed by an earthquake, two formerly isolated populations of deer can now interbreed. This is an example of what? A. Mutations B. Natural Selection C. Non Random Mating D. Gene Flowarrow_forwardWhich term can most accurately be used to describe evolutionary change that leads to speciation? A. microevolution b. macroevolution c. sexual selection d. natural selection e. reproductive isolationarrow_forward
- Which is an example of directional selection after several generations on an island population from an original population that had an equal number of individuals with thin, moderate, and thick sized legs? A. Anolis lizards that have evolved thinner legs b. Anolis lizards that have evolved thin and thick legs c. Anolis lizards that have evolved moderate sized legs d. All of the above E. none of the abovearrow_forwardAccording to "The Complex Evolution of Homo sapiens", what happened to large animals in the areas where our species migrated? A.They died out soon after we migrated into their area B.We domesticated them soon after we migrated into their area C.Nothing happened to large animals when we migrated into their territories D.They increased in number soon after we migrated into their areaarrow_forwardWhat does the term evolution mean? A. The characteristics of species become more complex over time. B. The strongest individuals produce the most offspring. C. The characteristics of an individual change through the course of its life, in response to natural selection. D. The characteristics of populations change through time.arrow_forward
- What does “descent with modification” mean?a. Populations that change quickly are likely to become extinct.b. Inherited traits change from generation to generation.c. Tracing an evolutionary tree from top to bottom reveals changes inspecies diversity.d. Parents change their own features before passing them on to offspring.arrow_forwardIf two mouse populations do not interbreed but are found in the same area, they may form different species due to d. Adaptive radiation c. Spontaneous generation a. Geographic isolation b. Mutations OOOOarrow_forwardBlack-footed ferrets are an endangered weasel found in the Great Plains. If fire swept through the plains and only a few members of a population survive (lowering the gene pool) , what did they experience? a.Bottleneck Effect B.Founder Effect C.Mutation D.Natural Selectionarrow_forward
- Why are humans so genetically similar within our species? A. Humans are not very genetically similar to one another. B. Because humans evolved in one location (Africa) and we have existed as a species for very long time. C. Because humans evolved in multiple locations around the world at different times. D. Because humans evolved in one location (Africa) and we haven't existed as a species for very long.arrow_forwardWhat is a cline? a. the slope of a mountain where a population lives b. the degree to which a mutation helps an individual survive c. the number of individuals in the population d. gradual geographic variation across an ecological gradientarrow_forwardMembers of some species will sound warning calls when they notice predators even though this increases the likelihood the predator will find the individual that provided the alarm. The evolution of such behaviors provides evidence for which hypothesis? A. Evolution selects behaviors that increase the ability of individuals in a species to camouflage. B. Evolution selects behaviors that increase the likelihood that individuals in a species will reproduce. C. Evolution selects behaviors that increase the the likelihood that individuals in a species that share similar genes will survive and reproduce. D. Evolution selects behaviors that increase the likelihood that individuals in a species that share similar genes will migrate.arrow_forward
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