What is the scientific classification for a fish?

Here's the scientific classification of fish, breaking it down by taxonomic levels:

Domain: Eukaryota (organisms with cells containing a nucleus)

Kingdom: Animalia (multicellular, heterotrophic organisms)

Phylum: Chordata (animals with a notochord, dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail at some point in their development)

Subphylum: Vertebrata (chordates with a vertebral column)

Superclass: Pisces (aquatic vertebrates with gills and fins)

There are two main classes within Pisces:

* Class Chondrichthyes: Cartilaginous fishes (e.g., sharks, rays, skates)

* Class Osteichthyes: Bony fishes (e.g., tuna, salmon, goldfish)

Important Note: The term "fish" is not a formal scientific classification, but rather a general term used to refer to a wide range of aquatic animals.