With respect to Piaget's stages of sensorimotor intelligence, acquired adaptation is to reflex as stage is to stage .

With respect to Piaget's stages of sensorimotor intelligence, acquired adaptation is to reflex as stage first habits (primary circular reactions) is to stage of secondary circular reactions.

Explanation:

The first two stages of sensorimotor intelligence includes;

- stage of reflexes (sensation of perception leads to perception, to cognition, and cognition back to sensation)

- first acquired adaptations/stage of first habits.