Young Matthew is a very fussy eater. He only willingly eats yogurt, cheese sticks, chicken nuggets, and sweets. Tonight at dinner he watched his big brother Jonah eat a plate of lasagna, smile, and talk about how yummy it was. Matthew then had a small taste of the pasta dish and exclaimed that he loved it. In this example, Jonah has served as a(n) for Matthew.

Model        

Explanation:

In the given scenario of the question ,

Jonah acts as a model for young Matthew ,

A model can be a person whose success , example , behaviors and activities are influenced by other people , is referred to as a model .

The eating habits of Jonah where very impressive , and hence , Matthew tries to copy it by tasting pasta dish , showcasing , that Matthew is considering Jonah to his model.

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

it is a better alternative