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Fish. More specifically the lamprey.
What else can I help you with?
Why is a jellyfish is not listed as an animal with backbone?
jellyfish is not listed as vertebrates because it is a hollow bodied-animals and one of the simplest invertebrates.
Do sea sponges have back bones?
No. Vertebrates are animals with backbones. Sponges are about the simplest multicelluar organisms around.
Is a snake a vertebrates or invertebrates?
Snakes are vertebrates.
How many chamber does have fish heart have?
Fish hearts have 2 main chambers: the atrium and the ventricle. Fish have the simplest hearts of all the vertebrates.
Are jaguars vertebrates or non-vertebrates?
vertebrates
Are toucans invertebrates or vertebrates?
A toucan is a bird, and all birds are vertebrates.
Are Dolphins vertebrates or invertebrates?
Dolphins are vertebrates.
Are rabbits vertebrates or invertebrates?
They have a skeleton & are therefore Vertebrates
Are ostrich's vertebrates or invertebrates?
Ostrich's are vertebrates as they have a spine.
Are piranhas vertebrates or invertebrates?
Pelicans are birds and, like all birds, they are vertebrates. Pelicans have a backbone and an internal skeleton.
Do they have vertebrates or non-vertebrates?
There are both vertebrates(things with backbones) & non-vertebrates(animals without backbones).
What are the difference between vertebrates and in vertebrates?
vertebrates have a backbone invertebrates don't
