no
a miniature schnauzer is the only "breed" of miniature schnauzers. you have your giant schnauzers and there are yet to be toy schnauzers which would be smaller than miniatures.
Miniature Schnauzers weigh from 6 - 7 kg.
Miniature Schnauzers are intelligent, playful, and good with children, making them great family pets. However, they can be prone to separation anxiety and may bark a lot if not trained properly. Regular grooming is needed to maintain their characteristic wiry coat.
Miniature schnauzers can have apples, but in small pieces so they cannot choke on it.
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There are many places online to find information about miniature schnauzers. Try websites like Wikipedia, dogbreedinfo, and the Miniature Schnauzer Club of Canada.
they can grow long hair if you dont get them cut often enough.
yes
they have cats as enemies
Not very long! But you do need to clip/strip it every 10 weeks.
No, according to the book The Intelligence of Dogs by Stanley Coren, Miniature Schnauzers are the twelfth most intelligent dog breed.