Why does the textbook refer to sucking as a congenitally organized behaviour rather than a reflex?

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Sucking is considered a congenitally organized behaviour because infants can modify how they suck based on different conditions, such as changes in the flow of milk or the type of nipple on a bottle. This adaptability indicates a higher level of organization and learning capability than a simple reflex, which would not vary with conditions.

Why Does the Textbook Refer to Sucking as a Congenitally