In some groups of marmosets, juveniles stick around to help their parents raise their young siblings. In doing so, they forego dispersal to a new group. Given this information, and this information only, what can be said of this behavior: O a. The juveniles have made a decision to maximize their inclusive fitness. O b. This scenario supports the Group Augmentation Hypothesis. O c. The juveniles have made a decision that increases their indirect fitness. O d. The juveniles have made a decision that maximizes their direct fitness. O e. This scenario supports the Temporal Variability Hypothesis.

In some groups of marmosets, juveniles stick around to help their parents raise their young siblings. In doing so, they forego dispersal to a new group. Given this information, and this information only, what can be said of this behavior: O a. The juveniles have made a decision to maximize their inclusive fitness. O b. This scenario supports the Group Augmentation Hypothesis. O c. The juveniles have made a decision that increases their indirect fitness. O d. The juveniles have made a decision that maximizes their direct fitness. O e. This scenario supports the Temporal Variability Hypothesis.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter56: Animal Behavior

Section: Chapter Questions

Problem 1ITD

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Concept explainers

Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.

Question

In some groups of marmosets, juveniles stick around to help their parents raise their young siblings. In doing so, they forego dispersal to a new group. Given this information, and this information only, what can be said of this behavior:
O a. The juveniles have made a decision to maximize their inclusive fitness.
O b. This scenario supports the Group Augmentation Hypothesis.
O c. The juveniles have made a decision that increases their indirect fitness.
O d. The juveniles have made a decision that maximizes their direct fitness.
O e. This scenario supports the Temporal Variability Hypothesis.

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