Biology: Life on Earth Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780134153742
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 16, Problem 6FTB
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
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Chapter 16 Solutions
Biology: Life on Earth Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 16 - The alleles responsible for antibiotic resistance...Ch. 16 - Stabilizing selection on a trait tends to a. make...Ch. 16 - An adaptation is any trait that arises from a...Ch. 16 - 4. Which of the following statements about...Ch. 16 - 5. Genetic drift occurs
a. when different...Ch. 16 - The ________ provides a simple mathematical model...Ch. 16 - 2. Different versions of the same gene are called...Ch. 16 - An organism's ________ refers to the specific...Ch. 16 - 4. A random form of evolution is called _________....Ch. 16 - Competition is most intense between members of...
Ch. 16 - 6. The evolutionary fitness of an organism is...Ch. 16 - 1. What is a gene pool? How would you determine...Ch. 16 - 2. 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 - 5. People like to say that “you can’t prove a...Ch. 16 - 6. Describe the three ways in which natural...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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- An 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_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_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_forwardWhich 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 Adaptationarrow_forwardEvolution is a process of___ in a population through___ variation over___ Evolution involves___ and___.arrow_forward
- A 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_forwardTrue or false: If false, please make it a correct statement. A rancher uses a particular chicken for breeding purposes because, on average, she observed that the chicken laid more eggs than other chickens. The rancher selecting the desirable trait would be considered an example of natural selection.arrow_forwardTRUE/FALSE. Disruptive selection creates alleles that increase genetic diversity in a population. If false explain why and if true explain whyarrow_forward
- Using grey squirrels as an example, describe a population that would be of interest to a researcher. How would your approach to squirrels differ if you were going to measure tail length on a sample vs doing a census? Using white tailed deer as an example, describe a population that would be of interest to a researcher in Central Illinois. What variable might be of interest?arrow_forwardDirections: Complete the statement. This diagram demonstrates the process of __________________. It demonstrates that changes in the variation of a population can change the traits of a population. Before the introduction of the predator, each color occured in equal numbers in population. After the introduction of the predator the ____________________ variation is most common. This is because they were able to survive and ____________________ at a greater rate.arrow_forwardPlease help explain the following to me, I don't really understand. compare the r-selected and K-selected species for the following life history traits. One of your answers should discuss survivorship curves. lifespan - juvenile mortality - body size -arrow_forward
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