The change in Helen's work hours (night shift) may cause Helen to be at increased risk for heart disease. The effects of shift work can manifest in various forms of illness, one is problems in the cardiovascular system. The reason is because the cardiovascular system in all mammals is highly organised with regard to time and when the time is different organized (the time we should sleep we work) that can lead to certain conditions.
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political system, terrorist attacks, forced labour
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Energy is the capacity of a physical system to perform work. Energy exists in several forms such as heat , kinetic or mechanical energy, light, potential energy , electrical, or other forms.
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I googled the model, hope its similar to yours!
According to Von Thuen's model, the kind of agricultural activity that would lie closest to the city would be :
intense farming/dairy product ,
According to the book, classical conditioning is a sort of learning in which a person learns to link two or more inputs and predict occurrences. To teach a youngster not to run into the street, it must be exposed to stimuli that are associated with not doing so.
Classical conditioning is a behavioral process in which biologically potent stimuli are paired with previously neutral stimuli. It also refers to the learning process resulting from this pairing, in which neutral stimuli usually elicit responses similar to those elicited by strong stimuli.
Classical conditioning differs from operant conditioning. In operant conditioning, the strength of voluntary behavior is modified through reinforcement or punishment. However, classical conditioning can influence operant conditioning in different ways. In particular, classically conditioned stimuli help reinforce operant responses.
Classical conditioning was first studied in detail by Ivan Pavlov. Pavlov conducted experiments on dogs and published the results in 1897. During a gastrointestinal study of Russian physiologists, Pavlov observed that the dogs he used as test subjects drooled when offered meat.
Learn more about Classical Conditioning here : brainly.com/question/7170975
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