Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 53, Problem 2SYK
What is the best collection of life history traits that would maximize reproductive success?
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What are the relative advantages and disadvantages ofsemelparity and iteroparity? In answering, consider iteroparousspecies that have both short and long expected life spans in theirnatural environments.
Define selection and relate this to relative reproductive success?
Assume you are studying a species of slug where the eggs are fertilized and transferred to the male. As a result the male is not able to increase reproductive success by mating with multiple partners. Therefore which of the following about sexual selection in this species is not true?
Females are more likely to develop traits that signal genetic quality to males.
Females will be able to increase reproductive success with increased mating partners.
Sexual selection in males will lead them to be choosy with what females they mate with.
Sexual selection in males will lead them to mate indiscriminately when they find a female.
Chapter 53 Solutions
Study Guide for Campbell Biology
Ch. 53 - In a mark-recapture study, an ecologist traps,...Ch. 53 - Prob. 2IQCh. 53 - Define r. How does r relate to exponential growth?Ch. 53 - Label the following exponential and logistic...Ch. 53 - Prob. 5IQCh. 53 - a. List some density-dependent factors that may...Ch. 53 - What do the age structure pyramids in Figure 53.24...Ch. 53 - Create a concept map to organize your...Ch. 53 - What is the best collection of life history traits...Ch. 53 - In an area with a heterogeneous distribution of...
Ch. 53 - Which of the following statements about life...Ch. 53 - Prob. 3TYKCh. 53 - The middle of the S-shaped growth curve in the...Ch. 53 - In the logistic growth equation, which term...Ch. 53 - The term (K N)/K a. is the carrying capacity for...Ch. 53 - The carrying capacity for a population is...Ch. 53 - In order to maintain the largest sustainable fish...Ch. 53 - Immigration and emigration are likely to play a...Ch. 53 - Chimpanzee females typically first give birth at...Ch. 53 - Which of the following factors is not a...Ch. 53 - Consider a population experiencing negative...Ch. 53 - You have introduced a small number of individuals...Ch. 53 - Prob. 14TYKCh. 53 - Prob. 15TYKCh. 53 - In a population showing exponential growth, what...Ch. 53 - As a population approaches zero population growth,...Ch. 53 - For a population showing exponential growth, how...Ch. 53 - The human population is growing at such a fast...Ch. 53 - The demographic transition is the gradual shift...Ch. 53 - An ecological footprint is an estimate of a. the...
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- 6)Which one of these statements about fitness is most accurate? a)Fitness is a measure of strength & health b)Fitness can only be measured at the population level c)Fitness may change at a population level, but is constant for an individual d)Fitness is an overall measurement that applies to all evolutionary mechanisms e)Fitness is a measure of reproductive successarrow_forwardWhich of the following is true about fitness? a) It refers to the physical strength of an individual b) It is determined solely by an individual's genotype c) It is the same thing as survival d) It is the ability of an individual to reproduce and pass on its genes to the next generationarrow_forwardBigger dogs will have more puppies than smaller dogs in a litter. What is the independent variable, dependent variable, constant, and control group?arrow_forward
- Explain how sexual selection might lead to a)sexual dimorphism and b) members of one sex (usually male) having traits that do not enhance their survivalarrow_forwardADJUST Negative assortative mating means that organisms choose mates that are different from themselves. If negative assortive mating occurs in a population, what would expect to happen to genotype frequency over generations? O a) Frequency of the heterozygous genotype will increase. b) Frequency of the homozygous genotypes will decrease. O c) Frequency of the homozygous genotypes will increase. O d) Both A and B AUTO ||||||||| Cancel Revertarrow_forwardWhat are some other prezygotic reproductive barriers besides a mating dance?arrow_forward
- Why is long-term parental care not associated with having many offspring during a reproductive episode?arrow_forwardWhat does the Hardy Weinberg equation do? A) Show if a population is evolving B) Shows how many dominant alleles there are C) Does not work with asexual reproductionarrow_forwardOf the males who survive to reproduce, let's say that males with the Ho+Ho+ and Ho+Hop genotype have on average 2.5 offspring, while HopHop males have on average 1 offspring. Taking into account both survival and reproduction, how many offspring do you expect each of the three male genotypes to contribute to the total population in the next generation? N(Ho+Ho+)= Enter your answer here N(Ho+Hop)= Enter your answer here N(HopHop) = Enter your answer here NTotal= Enter your answer herearrow_forward
- In some cases, males or females do care for young of their own species that are not their own, as when certain male fish take over and protect egg masses being brooded by other males or when female ducks acquire ducklings that have just left someone else’s nest. Propose alternative hypotheses to explain this phenomenon. Under what circumstances might adoptions actually raise the caregiver’s reproductive success? Under what other circumstances might adopters help nongenetic offspring as a cost of achieving some other goal? Don't write from any online source..arrow_forwardBased on the data shown in the graph, select the statements that describe what happens whenever one sex becomes rare or common. When one sex becomes rare, parents producing that sex have higher fitness due to a higher probability of mating success in their offspring. The rare sex becomes more common. When one sex becomes common, parents producing that sex have reduced fitness due to a lower probability of mating success in their offspring. The common sex becomes rarer. When one sex becomes rare, the other sex becomes common due to random fluctuations in the production of male and female offspring. The fitness of the parents is not affected. When one sex becomes either more rare or more common, parents produce an equal number of sons and daughters. The sex ratio returns to an equal number of males and females.arrow_forwardDefine natural selection in relation with reproductive success ?arrow_forward
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