Give the classification of salmon tuna jellyfish goldfish and catfish according to its content at least three examples?

Here's a classification of the listed animals, focusing on their content and providing three examples for each group:

1. Fish

* Content: Vertebrates (have a backbone), aquatic (live in water), gills for breathing, fins for movement, generally have scales.

* Examples:

* Salmon: Anadromous fish (spend part of their life in freshwater and part in saltwater), known for their distinct red flesh.

* Tuna: Large, predatory fish found in the open ocean, prized for their meat.

* Goldfish: Domesticated species of carp, popular as aquarium pets.

2. Jellyfish

* Content: Invertebrates (lack a backbone), gelatinous, bell-shaped bodies, tentacles with stinging cells (nematocysts).

* Examples:

* Moon Jellyfish: Common in coastal waters, with a translucent, moon-shaped bell.

* Box Jellyfish: Highly venomous, found in tropical waters.

* Lion's Mane Jellyfish: Largest known jellyfish species, with a massive bell and long, flowing tentacles.

3. Catfish

* Content: Fish with barbels (whiskers) around their mouths, often nocturnal, typically bottom-feeders, some species have venomous spines.

* Examples:

* Channel Catfish: Popular sport fish in North America, known for their tasty flesh.

* Walking Catfish: Able to "walk" on land using their pectoral fins, found in Southeast Asia.

* Blue Catfish: Largest catfish species native to North America, reaching impressive sizes.