A kitten will be considered a cat when it's nine months old. I once read that a cat was adolescent from about 10 to about 18 months of age... I guess that means s/he's an adult past 18 months of age.
Ethnically, Mexican Americans are a diverse population including Mexicans of Indigenous ancestry, Mexicans of European ancestry (mostly Spanish), and Mexicans of Middle Eastern stock (mainly Lebanese).
Hispanic Ethnicity: According to the Census, people of Hispanic origin, were those who indicated that their origin was Mexican, Puerto Rican, Cuban, Central or South American or some other Hispanic origin. It should be noted that people of Hispanic origin may be of any race.