Question

Which characteristic is used to classify frogs into a different phylum from squid snails and jellyfish?

Answer 1

The characteristic which is used to classic frogs into a different phylum from squids, snails and jellyfish is "backbone".

As humans, we have been taught that the backbone is the most important part of a living organism. To the surprise of many, snails and jellyfish don't have a backbone. In contrast to this, the body of a frog is made to jump and swim. Frogs have a small backbone and this delegates them from squids, snails and jellyfish.