because of tobol
The fish is the vertebrate that has got gills.
Pisces
Vertibrates have bones while invertibrate don't have.
You can tell if a creature is a vertebrate if it has a spine or not. The word vertebrate comes from the sections of the spine which are called vertebrae.
Fish- only vertebrate that has gills its whole life Bird- Only vertebrate with feathers Reptile- Dry scaly skin Mammal- only vertebrate that doesn't lay eggs Amphibian- Spend half of their life in water
by the gills
by palpation
The characteristic's of a fish areThey all have gillsThey all are aquatic vertebrate's which means they have a backbone
It would be more appropriate to say that all vertebrate embryos develop pharyngeal gill slits during one of the many phases in their embryonic development. This is because while gills are specifically present in fishes, pharyngeal gill slits are a general chordate feature.
wea vertebrate is an animal with a backbone (spine) and an invertebrate has no backbone, usually it has an exoskeleton.... you tell me...
one has a backbone and the other doesnt
Fish are not mammals.