Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 16, Problem 6FIB
The evolutionary fitness of an organism is measured by its success at ________. The fitness of an organism can change if its _________ changes.
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True or false: Natural selection, in general, references variation in survival and reproductive success in individuals
Evolution is a process of___
in a population through___
variation over___
Evolution involves___
and___.
Which of the following is the degree of an organism’s adaptation to an environment, as measured by an individual’s relative genetic contribution to future generations?
Fitness
Lineage
Adaptation
Chapter 16 Solutions
Biology
Ch. 16.1 - define evolution in terms of concepts from...Ch. 16.1 - define equilibrium population and describe the...Ch. 16.2 - If it were true that mutations do occur in...Ch. 16.2 - Explain how the distribution of genotypes in...Ch. 16.2 - A flu vaccination stimulates your immune system to...Ch. 16.2 - Prob. 3TCCh. 16.2 - If a population grows large again after a...Ch. 16.2 - Prob. 5TCCh. 16.2 - Evolution of a Menace The mutant alleles that...Ch. 16.2 - describe how mutation, gene flow, genetic drift,...
Ch. 16.3 - A team of phys clans treated four patients with...Ch. 16.3 - If we studied a population of bighorn sheep and...Ch. 16.3 - When selection is directional, is there any limit...Ch. 16.3 - describe why selection of phenotypes can affect...Ch. 16.3 - explain how competition and predation influence...Ch. 16.3 - Prob. 3CYLCh. 16.3 - compare and contrast directional selection,...Ch. 16.3 - Microbiologists have discovered that alleles...Ch. 16 - The alleles responsible for antibiotic resistance...Ch. 16 - Stabilizing selection on a trait tends to a. make...Ch. 16 - An adaptation is a. any trait that arises from a...Ch. 16 - Which of the following statements about mutations...Ch. 16 - Genetic drift occurs a. when different phenotypes...Ch. 16 - The ______ provides a simple mathematical model...Ch. 16 - Different versions of the same gene are called...Ch. 16 - An organisms ______ refers to the specific alleles...Ch. 16 - A random form of evolution is called ________....Ch. 16 - Competition is most Intense between members of...Ch. 16 - The evolutionary fitness of an organism is...Ch. 16 - What is a gene pool? How would you determine the...Ch. 16 - Define equilibrium population. Outline the...Ch. 16 - How does population size affect the likelihood of...Ch. 16 - If you measured the allele frequencies of a gene...Ch. 16 - People like to say that you cant prove a negative....Ch. 16 - Describe the three ways in which natural selection...Ch. 16 - What is sexual selection? How is sexual selection...Ch. 16 - In North America, the average height of adult...Ch. 16 - By the 1940s, the whooping crane population had...
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- A difference in survival and reproduction among members of a population that vary in one or more traits is called ________.arrow_forwardWhen a population evolves to be better fitted to its environment, this is an example of , which is brought about by the process of .arrow_forwardNatural selection is known to modify the population, stating that “the fittest individuals survive and reproduce, passing on their traits from generation to generation”. Give an example.arrow_forward
- Why is "fitness" in selection referred to "relative fitness"? Group of answer choices A_"Relative fitness" refers to fitness of a genotype relative to the environment that organisms are in B_"Relative fitness" refers to fitness of some genotypes relative to other genotypes in a populationarrow_forwardAn organism’s relative fitness is measured by its ______. Group of answer choices Mutation rate Genetic variability Contribution to the gene pool of the next generation Health and stability in the face of environmental changearrow_forwardA population has several generations of random mate choice followed by a generation of nonrandom mate choice. The effect of this generation of nonrandom mate choice is ____. a new evolutionary pattern due to nonrandom mate choice would begin equilibrium (no change between the random generations and the nonrandom generation) a reversal of the evolutionary pattern set by random generations due to a generation of nonrandom mate choicearrow_forward
- TRUE/FALSE. Disruptive selection creates alleles that increase genetic diversity in a population. If false explain why and if true explain whyarrow_forwardWhich of these conditions should completely prevent the occurrence of natural selection in a population over time? Group of answer choices The population size is large All variation between individuals is due only to environmental factors The population lives in a habitat where there are no competing species present The environment is changing at a relatively slow ratearrow_forwardWhich statement least applies to the concept of fitness? A. Measures of fitness include mating sucess and fecundity. B. It is trait featured among organisms which survived a bottleneck event. C. Reproductive sucess of individuals can be enhanced by their social behaviors within a group. D. Fitness among individuals in a population can vary due to differential reproduction.arrow_forward
- Which of these conditions should completely prevent the occurrence of natural selection in a population over time? Group of answer choices Variation between individuals is not heritable. The environment is changing at a relatively slow rate. The population lives in a habitat where there are no competing species present. The population size is large.arrow_forwardWhich of the following best describes the biological significance of genetic diversity between populations? A) Genes for traits conferring an advantage to local conditions are unlikely. B) Diseases and parasites are not spread between separated populations. C) Genetic diversity reduces the probability of extinction. D) The population that is most fit would survive by competitive exclusion.arrow_forwardWhich of the following terms are used to apply ONLY TO SELECTION, and never to just evolution. Choose all that apply. Cost/benefit Selective advantage/disadvantage Founder effect Allele frequencies Fitness Bottleneck effectarrow_forward
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