Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 43, Problem 4CT
When researchers gave pair-bonded voles methamphetamine in their drinking water the voles’ brains made less oxytocin. What effect do you think this hormonal change had on partner preference in these animals?
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Fish produce a hormone called isotocin, a hormone that is similar to oxytocin in mammals. Both hormones, oxytocin and isotocin, have been linked to social behaviors including the suppression of social anxiety, trust, and attachment. Prior to this study, the relationship between isotocin in the bloodstream and the amount of aggression or submission individual cichlid fish display was unknown. The researchers hypothesized that isotocin would suppress aggressive behaviors in cichlids to promote social cohesion as these fish exist in large social groups (schools). To address this hypothesis, each of 10 fish were exposed to two treatments, 1 week apart. One at a time, a fish was randomly selected from the group of 10 and either injected with a saline solution (that served as the control) or with isotocin. After this injection, the fish was returned to its group and the amount of aggressive and submissive behaviors the fish demonstrated was recorded for the next 10 minutes. One week later…
Fish produce a hormone called isotocin, a hormone that is similar to oxytocin in mammals. Both hormones, oxytocin and isotocin, have been linked to social behaviors including the suppression of social anxiety, trust, and attachment. Prior to this study, the relationship between isotocin in the bloodstream and the amount of aggression or submission individual cichlid fish display was unknown. The researchers hypothesized that isotocin would suppress aggressive behaviors in cichlids to promote social cohesion as these fish exist in large social groups (schools). To address this hypothesis, each of 10 fish were exposed to two treatments, 1 week apart. One at a time, a fish was randomly selected from the group of 10 and either injected with a saline solution (that served as the control) or with isotocin. After this injection, the fish was returned to its group and the amount of aggressive and submissive behaviors the fish demonstrated was recorded for the next 10 minutes. One week later…
Based on what you know about how Serotonin and Octopamine function, do the results of the Octopamine injection make sense?
Results: After injecting the Octopamine, the crayfish showed aggressive behavior(either resident male or intruder female/male)
Why do you say so? What might explain your results?
Chapter 43 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 43 - Prob. 1DAACh. 43 - Prob. 2DAACh. 43 - Prob. 3DAACh. 43 - Whether a fruit fly is a sitter or a rover depends...Ch. 43 - Prob. 2SQCh. 43 - An animal that navigates by the stars needs...Ch. 43 - The honeybee dance language transmits information...Ch. 43 - A _______ is a chemical that conveys information...Ch. 43 - Prob. 6SQCh. 43 - Generally, living in a social group cost the...
Ch. 43 - Prob. 8SQCh. 43 - Prob. 9SQCh. 43 - Prob. 10SQCh. 43 - A honeybee worker is a ________. a. fertile female...Ch. 43 - Prob. 12SQCh. 43 - Prob. 13SQCh. 43 - Prob. 14SQCh. 43 - Prob. 15SQCh. 43 - Prob. 1CTCh. 43 - Prob. 2CTCh. 43 - European cuckoos and North American brown-headed...Ch. 43 - When researchers gave pair-bonded voles...
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