Which characteristics is used to categorize the different kinds of animal-like prostists?

The characteristic that is used to categorize a different kind of animal-like protists is their method of digesting food.Animal-like protists are commonly known as protozoa. Like animals, they can move, and they eat things outside of themselves instead of producing their own food.

Yes.
a genetic disorder can be passed down from parent to son/daughter and generation to generation as it can be inherited.