Jackson made a goal to quit smoking. Through a lot of hard work and willpower, he achieved this goal, and at the end of one full year tobacco free, bought himself a new car. This is an example of

Positive reinforcement

Explanation:

Positive reinforcement is an action taken that will straighten the behavior of a person or activity of a situation for a better or future purpose which was rewarded for a past action. Jackson, being able to keep to his goal, bought a car to reward himself. This will motivate him to be most consistent to staying away from tobacco

cause you are attracted to the features of girls or if you are a boy you are attracted to the features of a boy.

well since twins have about the same dna they dont have one think in common which is the figer print. nobodys fingerprint is the same. if your using twin you would most likely get around the same results for both of them because of the genetics.. i hope this