Vertebrates/invertebrates

A vertebrate is an animal that has a backbone or spinal column. Examples include mammals, birds, reptiles, amphibians, and fish.

An invertebrate is an animal that does not have a backbone. Examples include insects, arachnids, mollusks, and jellyfish.

Lobsters belong to the phylum Arthropoda.

Cnidarians have a digestive cavity with one opening and often have tentacles. Examples include jellyfish and hydras.

Arthropods are invertebrates with jointed legs and an exoskeleton. Examples include insects, spiders, and crustaceans.

The main difference is that vertebrates have a backbone, while invertebrates do not.

Mollusca is a phylum that includes soft-bodied animals, many of which have shells, such as snails, clams, and octopuses.

No, not all animals are vertebrates. In fact, there are more invertebrates than vertebrates.

An example of a Cnidarian is a jellyfish.

The main groups of vertebrates are mammals, birds, reptiles, amphibians, and fish.