Examlex
Each epithelial cell on the villi of the small intestine contains 500 microvilli.What is the purpose of these microvilli?
Youthfulness
The characteristics, qualities, or appearance traditionally associated with young people.
Social Status
The position or rank of a person or group within a society based on various factors including occupation, income, or education.
Ethological Action Pattern
Innate, pre-programmed behaviors observed in animals that occur as a response to specific stimuli.
Instinct
An innate, typically fixed pattern of behavior in animals in response to certain stimuli that is biologically driven rather than learned.
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