Animal Behavior – Biology Final Exam

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Animal Behavior – Biology Final Exam

The key terms in this Biology course include Animal Behavior.


In regards to behavior what is/are proximate causes?

includes any interaction resulting from a response of one animal to another animal of the same species.

behavior is under selective evolutionary pressure

focus on the genetic, physiological, and anatomical mechanisms underlying the behavioral act itself

addresses the evolutionary significance of a behavior.

includes physical action or threat that causes another to abandon something.

Explanation

Proximate, or “how”,  causes/questions about behavior focus on the environmental stimuli that trigger a behavior. These focus on the genetic, physiological, and anatomical mechanisms underlying the behavioral act itself.


Proximate and Ultimate causes in male stickleback behavior

Proximate cause of male stickleback attack behavior                            [ Select ]

Ultimate cause of male stickleback attack behavior                              [ Select ]

Answer 1:

The red underbelly of the intruder male acts as a sign stimulus that triggers the fixed action pattern attack behavior.

Answer 2:

By chasing away a rival male stickleback, the attacking male stickleback increases the likelihood that the eggs in his territory are fertilized be him. This behavior is under selective evolutionary pressure, since males that keep other males away are able to fertilize more eggs

Proximate

The red underbelly of the intruder male acts as a sign stimulus that triggers the fixed action pattern attack behavior.

Ultimate

By chasing away a rival male stickleback, the attacking  male stickleback increases the likelihood that the eggs in his territory are fertilized be him. This behavior is under selective evolutionary pressure, since males that keep other males away are able to fertilize more eggs (hence the attacking males genetics are kept in the population). 


In regards behavior what is/are ultimate causes?

a sign stimulus that triggers the fixed action pattern

includes any interaction resulting from a response of one animal to another animal of the same species.

includes physical action or threat that causes another to abandon something.

focus on the genetic, physiological, and anatomical mechanisms underlying the behavioral act itself

addresses the evolutionary significance of a behavior.

Explanation

Ultimate, or “why”, causes/questions addresses  the evolutionary significance of a behavior.


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