Vertebrates and Invertebrates

Mammals are hairy, warm-blooded animals that feed their babies milk.

Vertebrates have a backbone.

Invertebrates are animals that do not have a backbone.

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

Examples of vertebrates include mammals, birds, reptiles, amphibians, and fish.

Examples of invertebrates include insects, arachnids, mollusks, and crustaceans.

The classification system includes categories such as kingdom, phylum, class, order, family, genus, and species.

The two main groups of animals are vertebrates and invertebrates.

Mammals are warm-blooded and have fur or hair, while birds are warm-blooded and have feathers.

Mammals and birds are examples of warm-blooded animals.