Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 39, Problem 9TYU
SCIENTIFIC INQUIRY
Scientists studying scrub jays found that “helpers” often assist mated pairs of birds by gathering food for their offspring. Propose a hypothesis to explain what advantage there might be for the helpers to engage in this behavior instead of seeking their own territories and mates. How would you test your hypothesis? If it is correct, what results would you expect your tests to yield?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
I am doing an ecology research paper on Brown Anole Lizard Distribution,
to perform my experiment I will choose 4 spots in a park such as a lake, a shaded tree, a boardwalk, and a sidewalk. then to quantify my results I will go three times a day for five weeks and count how many lizards I see in each area.
I need help thinking of a testable hypothesis?
This is often similar to your research question, however, it can be answered with the numbers you will collect.
For example, a research question could be: Which is better, a park or a nature preserve?
A testable hypothesis would be: Do parks or preserves have higher bird populations?
. SCIENTIFIC INQUIRY Scientists studying scrub jays found that“helpers” often assist mated pairs of birds by gathering food fortheir offspring.(A) Propose a hypothesis to explain what advantage theremight be for the helpers to engage in this behavior insteadof seeking their own territories and mates.(B) Explain how you would test your hypothesis. If it is correct,what results would you expect your tests to yield?
Female parasitoid wasps search for insect hosts in which to lay eggs, and they can often discriminate among individual hosts that are more or less suitable for their offspring. Behavioral ecologists have asked whether or not the wasps’ willingness to lay eggs in less suitable hosts varies with the female’s age. On the basis of life history theory, what pattern of change would you predict? Does life history theory make any other predictions about animal behavior?
Chapter 39 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 39.1 - Contrast the role of Ca2+ in the contraction of a...Ch. 39.1 - WHAT IF? Why are the muscles of an animal that has...Ch. 39.1 - Prob. 3CCCh. 39.2 - Prob. 1CCCh. 39.2 - Prob. 2CCCh. 39.2 - Prob. 3CCCh. 39.3 - Prob. 1CCCh. 39.3 - MAKE CONNECTIONS How is the lunar-linked rhythm of...Ch. 39.4 - How might associative learning explain why...Ch. 39.4 - Prob. 2CC
Ch. 39.4 - MAKE CONNECTIONS How might a learned behavior...Ch. 39.5 - Prob. 1CCCh. 39.5 - MAKE CONNECTIONS Balancing selection can maintain...Ch. 39.6 - Prob. 1CCCh. 39.6 - Prob. 2CCCh. 39 - During the contraction of a vertebrate skeletal...Ch. 39 - Prob. 2TYUCh. 39 - According to Hamiltons rule, A. natural selection...Ch. 39 - The binding of calcium to the troponin complex A....Ch. 39 - Curare, a substance that blocks the acetylcholine...Ch. 39 - Prob. 6TYUCh. 39 - Prob. 7TYUCh. 39 - SCIENTIFIC INQUIRY Propose a hypothesis to explain...Ch. 39 - SCIENTIFIC INQUIRY Scientists studying scrub jays...Ch. 39 - Prob. 10TYUCh. 39 - FOCUS ON INFORMATION Learning is defined as a...Ch. 39 - SYNTHESIZE YOUR KNOWLEDGE Acorn woodpeckers...
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
- EVOLUTION LINK When a black-tailed prairie dog or other small animal dies, other prairie dogs bury it. Develop a hypothesis to explain how this behavior may be adaptive. How would you test this hypothesis?arrow_forwardMany lines of evidence, including biochemical evidence, show that living birds are direct descendants of dinosaurs. A number of dinosaur lineages had feathered dinosaurs, not just the lineage that includes living birds. Do you think that is it justified to believe that all feathered dinosaurs had behaviors known from living birds? Such behaviors of birds include colonial nesting, sexual displays by males using feathers, males moving to display their ornamental feathers to female mates. Give a brief reason for your answer.arrow_forwardEvidence supports that feathers evolved before flight, and were later co-opted for flight. This is an example of Group of answer choices exaptation preadaptation an intermediate state a selective constraintarrow_forward
- Which of the following questions is most closely associated with anultimate cause of a behavior?a. How does a squid alter its color to blend in with its environment?b. How does a hummingbird’s body shape influence its ability tohover?c. How do alarm calls affect prairie dog fitness?d. Which cues do monarch butterflies use during migration?arrow_forwardPart 1. Neuroscience of social behaviour The data in figure 1 below show the shoaling behaviour of wild-type zebrafish compared to a novel zebrafish mutant. Groups of sixteen fish were placed into a large rectangular tank and their behaviour was recorded for 5 minutes. Tracking software was used to estimate the nearest neighbour distance and inter-individual distance. The bar charts depict the mean and standard deviation (shown as an error bar). ** indicates a statistically significant difference individual differences. Q1. Describe the phenotype of the mutant zebrafish compared to wild-type. I found this question online for revision but i cant find the mark scheme.arrow_forwardWhat are the excellent sentences in this response, and what are the logical flaws, content errors, or outright stupid comments? What are the main differences between inductive and deductive reasoning in the scientific method? Inductive reasoning and deductive reasoning are two different methods of reasoning that are used in the scientific method. Inductive reasoning involves drawing conclusions from specific observations or pieces of evidence. For example, if a scientist observes that a particular species of bird always builds its nest in a particular way, they might use inductive reasoning to conclude that all birds of that species build their nests in that way. Inductive reasoning is often used to generate hypotheses, which can then be tested through further observation or experimentation. Deductive reasoning, on the other hand, involves starting with a general principle or theory and using it to reach a specific conclusion. For example, if a scientist knows that all animals need…arrow_forward
- Use Verbal description of results from graph and then Interpret the graph for Foraging in Mixed Species Flocks sccenario in foraging lab. The interpretations must include Were the results expected and Did they support the hypotheses? If so, state the biological significance of the results from graph. If the results deviated significantly from expected results, discuss the hypotheses onthe basis of expected results and include an explanation of why this might be so. Lastly, state the conclusions drawn from the experiment and their biological relevance. Hypothesis: the assumption underscores the enhancement of foraging efficiency associated with the establishment of mixed-species flocks, emphasizing the advantages of cooperation and safety in numbers.arrow_forwardIn your own words (please discuss properly) Are social insects better able to modify the environment than solitary species? Explain. Cite concrete evidence to prove your point.arrow_forwardYou want to distinguish between two hypotheses to explain the patterns you see: 1) Males not feeding the young is an adaptation to dimorphism 2) If males don't feed the young in a species, it will allow them to become brightly colored To begin to address this question, map the characters changes in dimorphism and males feeding the young onto each of the trees on the previous page. CHARACTER SEXUAL DIMORPHISM MALES FEED YOUNG Cassin's Vireo No No Red Fox Sparrow Cape May Warbler Cedar Waxwing Golden-Crowned Kinglet Pyrrhuloxia Yes No No No No Yes No Yes Yes No California Gull No Yes Note: This data is fictional 5) Which of the hypotheses in part 4 is consistent with your analysis? Explain why in a brief paragraph.arrow_forward
- Why might game theory be useful in analyzing decision making by Adélie penguins (Pygoscelis adeliae) as they wait to enter the water by the edge of their breeding colonies? The penguins gather in groups before diving into the ocean where a huge predator, a leopard seal (Hydrurga leptonyx), may be lurking. How might one individual’s decision to dive in be dependent on what other penguins are doing? Please don't write from any online sourcearrow_forwardOne of Darwin’s finches, the medium ground finch (Geospiza fortis), is found on the small island of Daphne Major. These finches are seedeating birds. A major drought occurred on the island in 1977. Following the drought, the average beak size of medium ground finches had increased about 3%–4%. Why might a drought lead to an evolutionary change in beak size? Propose a hypothesis and explain how you could go about testing it.arrow_forwardOne of the main objectives of BI308 is to learn to think scientifically about animal behaviour. I talked about the problems that arise when we tell fables or just-so stories about the things that animals do. Some of the tools and approaches behavioural ecologists use would seem to be designed to help us be scientifically rigorous in our conclusions. But are they perfect? Think about optimality modeling. Could it be misused, leading to the kind of unscientific stories we were hoping to avoid or other misconceptions? Explain your reasoningarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Animal Adaptations for Kids, Learn about physical, life cycle, and behavioral adaptations of animals; Author: Learn Bright;https://www.youtube.com/watch?v=m2MibjJgyjs;License: Standard youtube license