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Neuronal pruning,which involves cell death,
Grades
Marks or scores assigned to a student's work to assess academic performance.
Hours
Units of time equivalent to 60 minutes, often used to measure the duration of events or the operational times of businesses and services.
Cause-and-effect
The principle that an action or event will produce a certain response or outcome in the natural or human-made world.
Correlational Data
Data used to measure and describe the degree to which two or more variables are related, without inferring a cause-and-effect relationship.
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Q153: In the 1950s,the British psychologist _ extended