Researchers condition a flatworm to contract its body to a light by repeatedly pairing the light with electric shock. the stage in which the flatworm's contraction response to light is established and gradually strengthened is called: a. shaping b. acquisition c. generalization d. spontaneous recovery e. latent learning

The stage where the flatworm’s contraction response to light is established and gradually strengthened is called acquisition. Acquisition is a process where something or an individual acts of having to gain or obtain something from a particular source or thing that it gained from.

chavez's example shows that nonviolent protest can work well. it shows that one nonviolent man can stop a mob, which proves chavez's point and persuades people to protest nonviolently.