The type of learning in which an organism learns to associate one stimulus with another is called

classical conditioning                            

Explanation:

Classical conditioning: In psychology, the theory of classical conditioning was proposed by one of the influential psychologists named Ivan Pavlov, who believed that this theory is a form of learning in which a particular stimulus is being linked with that of another stimulus to produce a specific response.

Classical conditioning involves a conditioned stimulus or CS that is being connected with an unconditioned stimulus or UCS and hence produces a conditioned response or CR which is a formerly neutral stimulus.

In the question above, the given statement signifies the importance of classical conditioning.

communication.

explanation:

don't be afraid to ask. if you really want to know why they suddenly don't talk to you, ask. but be polite while asking. tell them how you feel. if you feel upset about them ghosting you, say so. people cannot read your mind, so you need to let them know if this bothers you. if they say it's personal family matters, don't get offended. they need space if it's personal.