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Fixed action pattern

Ap Biology Chapter 51 Review

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Chapter 51: Animal Behavior Overview 1. How is behavior defined? ?A behavior is the nervous system?s response to a stimulus and is carried out by the muscular or the hormonal system ?Animal behavior is based on physiological systems and processes Concept 51.1 Discrete sensory inputs can stimulate both simple and complex behaviors 2. What is ethology? ?Ethology is the scientific study of animal behavior, particularly in natural environments 3. What is the difference between proximate and ultimate causation? ?Proximate causation, or the ?how? explains or focuses on: ?Environmental stimuli triggering a behavior, and ?Genetic, physiological, and anatomical mechanisms underlying a behavior ?Ultimate causation, or ?why? explains or focuses on the:

AP Bio Reading Guide Answers CH 51

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Copyright ? 2011 Pearson Education, Inc. - 1 - Name___________________________ Period___________ Chapter 51: Animal Behavior Overview 1. How is behavior defined? A behavior is an action carried out by muscles under control of the nervous system in response to a stimulus. Concept 51.1 Discrete sensory inputs can stimulate both simple and complex behaviors 2. What is behavioral ecology? Behavioral ecology is the study of the ecological and evolutionary basis for animal behavior. 3. What is a fixed action pattern (FAP)? Give an example. A sequence of unlearned acts directly linked to a simple stimulus. Fixed action patterns are essentially unchangeable and, once initiated, usually carried to completion. The territorial

AP Biology Notes on Animal Behavior

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Unit 16 - Animal Behavior List of Terms Fixed Action Pattern (FAP): innate, highly stereotypic behavior, that must be finished even if it is utterly useless. Initiated by external stimuli called sign stimuli e.g. stickleback fish attack other males (which have a red belly) who enter their territory if the stimuli are exchanged between the same species, it?s called a releaser Migration Animals migrate in response to external stimuli e.g. changes in day length, precipitation, temperature environment also gives cues for navigation Some animals track their position relative to sun Animals monitor changes in position of sun against internal circadian clock to tell where they are Nocturnal animals use the North star, which has a fixed position Pigeons use the magnetic field of the earth
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