When competitive swimmers stayed focused on their techniques during swim team practice, they were rewarded by their coach playing popular music over the loudspeakers in the pool area. when they were inattentive or started "goofing off," the coach played recordings of gloomy, off-key organ music. in this example, the coach is using to his swimmers stay focused.

Behavior modification

Explanation:

Behavior modification makes reference to the different kinds of estrategies that are used in order to increase or decrease a particular type of reaction.

This is used in our daily lives not only by professionals but also by common people such parents when correcting kids, animal trainers when wanting to develop obedience from pets, or maybe therapists when they want to promote healthy behaviours in their patients.

Here we can see the way the trainer is giving a reward or a punishment according to the behavior the swimmers have.

b) the heart is a pump made of muscle and that is difficult to grow in the lab.