What is the structure of choline, a component of phosphatidylcholine phospholipids? 
Definitions:
Personality Traits
Enduring characteristics that describe an individual's consistent behaviors, thoughts, and emotional patterns.
Instincts
Innate, fixed patterns of behavior in animals and humans in response to stimuli, which are not learned and are often survival-oriented.
Observational Learning
The process of learning behaviors by watching and imitating others, also known as social learning or modeling.
Congruence
In psychology, the alignment or agreement between an individual's self-concept and their actual experiences.
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