Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 55.7, Problem 1CS
Core Skill: Modeling The goal of this modeling challenge is to draw a set of bar graphs illustrating the relative body sizes of males and females in different mating systems: monogamy, polygyny, and polyandry. You should be able to explain your graphical model.
Modeling Challenge: Draw a bar graph with three sets of two bars each to illustrate what you think are the relative body-size ratios of males:females in monogamous, polygynous, and polyandrous species, and explain your graph. Scale the y-axis from 0 to 2.0, with 1.0 representing equal body sizes for the two sexes.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Fitness and Selection: Rodent tails
A researcher is studying a rodent species with a lot of variability in tail length. Individuals may have short tails, medium tails, or long tails. The researcher has noticed that a new invasive predator, which catches prey by their tails as they try to escape, seems to catch individuals with long tails more often than those with short tails. Based on a small field trial, the relative fitness of long-tailed individuals seems to be 0.6 compared to short-tailed ones (1.0), with medium tails in-between (0.8).
Use the Examples tab to predict the outcome after selection for the rodent in regions with the invasive predator. What describes the population after 100 generations of selection? Choose all that apply.
A-Short Tailed individuals are the most common phenotype.
B-Short Tailed individuals are the only phenotype.
C-This is an example of disruptive selection.
D- The long tailed phenotype is no longer present
E-This is an example of directional…
please help with these two questions:
1.
iven what we understand about social structure, which type of social structure is generally associated with low levels of sexual dimorphism and high levels of paternal investment among animals in the wild?
a.
One male
b.
Monogamy
c.
Multiple male
d.
Polyandry
e.
Solitary
2.
Processes such as random genetic drift and founder effect can dramatically transform the genetic structure of a human group within relatively short periods of time because they can significantly reduce the effective breeding population so that the frequencies of certain genes are amplified.
a.True
b.False
Please answer fast
2. The black-backed jackal lives in the brushland of Africa, where monogamous pairs defend territories, hunt cooperatively, and share food. Frequently, offspring from the previous year's litter help rear their parents' new pups by regurgitating food for the lactating mother and for her young. It turns out that the number of surviving pups increases an average of 1.5 for every helper, compared to only 0.5 pups surviving when raised by the parents alone.
A. The recruitment of previous offspring to help raise new pups is called:
B. Why would young jackals forego their own breeding to help their mother raise new pups? Explain your answer in the context of Hamilton's Rule.
C. Young jackals that help their parents raise new pups usually have increased reproductive success and/or direct fitness later in life. Provide two potential explanations for this effect.
Chapter 55 Solutions
Biology
Ch. 55.1 - Prob. 1CCCh. 55.1 - Core Skill: Connections Look ahead to Figure...Ch. 55.1 - Prob. 2CSCh. 55.1 - Cuckoos lay their eggs in other birds nests, so...Ch. 55.2 - Prob. 1CCCh. 55.2 - Prob. 1EQCh. 55.2 - Prob. 2EQCh. 55.2 - Prob. 3EQCh. 55.2 - Prob. 2CCCh. 55.5 - Prob. 1CC
Ch. 55.6 - Prob. 1CCCh. 55.7 - Core Skill: ModelingThe goal of this modeling...Ch. 55 - Prob. 1TYCh. 55 - Prob. 2TYCh. 55 - Prob. 3TYCh. 55 - Prob. 4TYCh. 55 - Prob. 5TYCh. 55 - Prob. 6TYCh. 55 - Prob. 7TYCh. 55 - Prob. 8TYCh. 55 - In ants, which employ a haplodiploid mating...Ch. 55 - Prob. 10TYCh. 55 - Prob. 1CQCh. 55 - Prob. 2CQCh. 55 - Prob. 3CQCh. 55 - Prob. 1COQCh. 55 - Prob. 2COQ
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What's an activity for principle 8 "Give children ownership of routines and schedules principle"?arrow_forwardQ1 - In deductive reasoning, we go from a general premise to specific conclusions. True or false ? -In deductive reasoning, we start with specific observations, and form general conclusions. True or false? -Inductive reasoning can be considered a bottom-up approach. True or false?arrow_forwardWhat population and location would you like to complete placements with? Why do you want to work with this population and location?arrow_forward
- Step 1: watch this video https://www.ted.com/talks/paul_knoepfler_the_ethical_dilemma_of_designer_babies/up-next?language=en Step 2: Address one or more of the following questions raised by the video: How do you feel about the idea of "designer babies"? Should this technology be pursued /controlled /prevented? What concerns do you have? Please use source-supported facts to reinforce your opinion(s).arrow_forwardThinking Critically In what ways can members of the same population compete with one another? How might members of different populations compete? Contrast the results of these kinds of competition.arrow_forwardIdentify 3-4 key principles that govern human and animal behavior.arrow_forward
- What are the components of effective fitness testing?arrow_forward- What are examples of 5 advantages vs 5 disadvantages of homebirth with a midwife? - What are examples of 5 advantages vs 5 disadvantages of hospital birth?arrow_forwardHomework help, please!!! From the scenario given, come up with a hypothesis and experiment to test out the hypothesis Q6. Given the phenotype leads to a negative impact on the nematode’s predatory behavior, develop a hypothesis as to why this phenotype is increasing among the population (i.e. it is being positively selected for) Q7. Briefly describe an experiment you could use to test this hypothesisarrow_forward
- Q4 - Deductive reasoning can be considered a bottom-up approach.True or false? -Science uses ONLY deductive reasoning. True or false? - In the scientific method, when we go from making observations to forming a hypothesis, we are using deduction. True or false?arrow_forwardDiscuss and defend the attributes you would use to define biological successamong animals. Are humans a biological success by these standards? Why?arrow_forwardQuestion- Bluegill sunfish males use one of three strategies in trying to gain access to females and mate. Each male only carries out only one of the three strategies: territorial male, sneaker male or female mimic. While the territorial males have the highest reproductive success relative to the other males, some males are not large enough to successfully compete with other territorial males and adopt an alternative strategy, where they gain at least some reproductive success. This is an example of option 1-artificial selectionoption 2-balanced polymorphismOption 3-stabilizing selectionOption 4-negative-frequency dependent selectionarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Lifetime Physical Fitness & WellnessHealth & NutritionISBN:9781337677509Author:HOEGERPublisher:CengageHealth Safety And Nutrition F/Young ChildHealth & NutritionISBN:9781305144767Author:MAROTZPublisher:CengageBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Lifetime Physical Fitness & Wellness
Health & Nutrition
ISBN:9781337677509
Author:HOEGER
Publisher:Cengage
Health Safety And Nutrition F/Young Child
Health & Nutrition
ISBN:9781305144767
Author:MAROTZ
Publisher:Cengage
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Serology 101: Testing for IgG and IgM antibodies; Author: Beckman Coulter Dx;https://www.youtube.com/watch?v=LtqKB-qpJrs;License: Standard youtube license