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Extinction

Chapter 9

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background extinction During most of the 3.56 billion years that life has existed on the earth, there has been a continuous, low level of extinction of species known as background extinction. endangered species has so few individual survivors that the species could soon become extinct over all or most of its natural range (the area in which it is normally found). extinction rate expressed as a percentage or number of species that go extinct within a certain time period such as a year. HIPPCO Habitat destruction, degradation, and fragmentation; Invasive (nonnative) species; Population and resource use growth (too many people consuming too many resources); Pollution; Climate change; and Overexploitation.

Psych Outline- Learning

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AP Psychology Outline Chapter 6: Learning Red ? Definition Blue - Important Points Green - Important People & Contributions Learning ? Any relatively durable Change in Behavior or Knowledge that is due to Experience. Conditioning ? Learning Associations between events that occur in an Organisms Environment. Classical Conditioning Phobias ? Irrational Fears of specific Objects or Situations. Classical Conditioning ? Type of Learning in which a Stimulus acquires the Capacity to Evoke a Response that was originally evoked by another Stimulus. Ivan Pavlov Pavlovian Conditioning Pavlov?s Dogs ? Prior to Dogs being Fed Meat, a Clicking Noise Occurred. Dogs started Salivating After awhile when the Click Occurred, prior to the Meat being given.

AP Psychology - Unit 6 (Learning) Outline

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Unit 6 ? Learning How Do We Learn? Learning is defined as ?a relatively permanent behavior change due to experience.? Associative learning is learning certain events that occur together. Conditioning is the process of learning associations. In classical conditioning, we learn to associate two stimuli in order to anticipate events, for instance wincing after lighting in anticipation of thunder. In operant conditioning, we learn to associate our behavior and its consequence and thus to repeat acts followed by good results and avoid acts followed by bad results. For example, a cat who receives a treat after performing an action is more likely to repeat that action. 'Habituation' describes an organism's decreasing response to a stimulus with repeated exposure to it.

7th edition Psych Wayne Weiten Ch.6 Outline

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Classical conditioning explains how a neutral stimulus can acquire the capacity to elicit a response originally evoked by another stimulus Many kinds of everyday responses are regulated through classical conditioning including phobias fears and pleasant emotional responses even physiological responses such as immune and sexual functioning respond to classical conditioning A conditioned response may be weaken and extinguished entirely when the CS is no longer paired with the UCS in some cases spontaneous recovery may occur and the extinguished response reappears after a period of nonexposure

AP Environmental Science Miller 17th Edition Ch.5

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APES CH.5 NOTES 5 basic types in interactions between species as they share limited resources such as food shelter and space:

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